the value of x will be 8√2 for the given right-angle triangle.
What is the right-angle triangle?A triangle is said to be right-angled if one of its angles is exactly 90 degrees. The total of the other two angles is 90 degrees. Perpendicular and the triangle's base are the sides that make up the right angle. The longest of the three sides, the third side is known as the hypotenuse.
Given, Two right-angle triangles one with the height of "x" and a base angle of 45-degree.
Another with a base of 8 and a base angle of 60-degree.
From the cosine rule of trigonometry:
Cos θ = base/(hypotenuse)
Sin θ = height/(hypotenuse)
For the triangle with a base angle of 45-degree
sin 45 = height/(hypotenuse)
1/√2 = x/(hypotenuse)
hypotenuse = x *√2.....(1)
For the triangle with a base angle of 60-degree
cos 60 = base/(hypotenuse)
1/2 = 8/(hypotenuse)
hypotenuse = 16
substitute this value in equation 1
x = 8√2
therefore, the value of x will be 8√2 for the given right-angle triangle.
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five cards are chosen at random from an ordinary deck of 52 (without replacement). what is the probability that you get four of a kind, which means four cards of the same rank, and one other card? examples are : 4444q or jjjj7.
So the probability of getting four cards of the same rank and one other card is approximately 0.00096, or about 1 in 1,040.
What is probability?Probability is a measure of the likelihood or chance of an event occurring. It is a numerical value between 0 and 1, where 0 indicates that the event is impossible and 1 indicates that the event is certain to occur. The probability of an event happening can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. For example, the probability of rolling a six on a fair six-sided die is 1/6, because there is only one favorable outcome (rolling a six) out of six possible outcomes (rolling a one, two, three, four, five, or six). Probability theory is widely used in mathematics, statistics, physics, engineering, economics, and many other fields to model and analyze uncertain situations and make predictions based on incomplete or imperfect information. It has many practical applications, such as in insurance, gambling, risk assessment, and scientific research.
Here,
To calculate the probability of getting four of a kind and one other card, we need to count the number of possible hands that satisfy this condition and divide it by the total number of possible hands.
First, we need to count the number of possible hands that contain four of a kind and one other card. There are 13 ranks in a deck of cards, and for each rank, there are 48 ways to choose four cards of that rank and 4 ways to choose one card of another rank (there are 4 cards of each rank in a deck). Therefore, the total number of hands that contain four of a kind and one other card is:
13 x 48 x 4 = 2,496
Next, we need to count the total number of possible hands of five cards that can be chosen from a deck of 52 cards without replacement. This is given by the formula:
52 choose 5 = 2,598,960
Therefore, the probability of getting four of a kind and one other card is:
2,496 / 2,598,960 = 0.00096 (rounded to 5 decimal places)
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Lecture 4 Problem 28: An urn contains 5 red, 6 blue, and 8 green balls. If a set of 3 balls is randomly selected, what is the probability that each of the balls will be (a) of the same color? (b) of different colors? Repeat under the assumption that whenever a ball is selected, its color is noted and it is then replaced in the urn before the next selection. This is known as sampling with replacemen
The probability of selecting three balls of the same color without replacement is 0.0545, and with replacement is 0.0393. The probability of selecting three balls of different colors without replacement is 0.4591, and with replacement is 0.4968.
(a) To select a set of 3 balls that are all of the same color, we need to choose one of the three colors (red, blue, or green), and then select 3 balls of that color from the urn. There are three ways to choose the color of the balls. For each color, the number of ways to select 3 balls of that color is given by the number of combinations of 3 balls from the set of balls of that color. Thus, the total number of ways to select a set of 3 balls that are all of the same color is:
Number of ways to select 3 red balls + number of ways to select 3 blue balls + number of ways to select 3 green balls
= (5 choose 3) + (6 choose 3) + (8 choose 3)
= 10 + 20 + 56
= 86
The total number of ways to select any set of 3 balls from the urn is given by the number of combinations of 3 balls from the set of 19 balls in the urn:
Total number of ways to select any set of 3 balls = (19 choose 3) = 969
Therefore, the probability that each of the balls will be of the same color is:
P(each ball of the same color) = (number of ways to select 3 balls of the same color) / (total number of ways to select any set of 3 balls)
= 86 / 969
= 0.089
So the probability that each of the balls will be of the same color is approximately 0.089 or 8.9%.
(b) To select a set of 3 balls that are of different colors, we need to choose one ball of each color from the urn. The number of ways to select one ball of each color is given by the product of the number of balls of each color:
Number of ways to select 1 ball of each color = 5 x 6 x 8 = 240
The total number of ways to select any set of 3 balls from the urn is still 969.
Therefore, the probability that each of the balls will be of different colors is:
P(each ball of different color) = (number of ways to select 1 ball of each color) / (total number of ways to select any set of 3 balls)
= 240 / 969
= 0.248
So the probability that each of the balls will be of different colors is approximately 0.248 or 24.8%.
When the balls are selected with replacement, the probabilities remain the same because the probabilities of selecting each ball are unchanged on each draw.
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Find the lengths of the missing sides in the triangle. Use the 45 degrees dash 45 degrees dash 90 degrees Triangle Theorem. Write your answers as integers, in radical form, or as decimals rounded to the nearest tenth. The diagram is not drawn to scale.
A right triangle is shown with an angle that measures 45 degrees.
The side opposite of the 45 degree angle is 7.
The side opposite of the unlabeled angle is y.
The side opposite of the right angle is x.
The lengths of the missing sides are: y = 7.0 * sqrt(2) and x = 7.0 * sqrt(2)
What is triangle ?Triangle can be defined in which it consists of three sides, three angles and sum of three angles is always 180 degrees.
According to the 45-45-90 triangle theorem, the two legs of a 45-45-90 triangle are congruent and the hypotenuse is the square root of 2 times the length of the legs. Therefore, if the side opposite the 45-degree angle is 7, then the other leg is also 7.
Let's label the hypotenuse as h. We know that h is the side opposite the right angle, so h = x. Using the Pythagorean theorem, we can find the length of x:
[tex]x^2 = 7^2 + 7^2x^2 = 98x = sqrt(98) = 7.0 * sqrt(2)[/tex]
So the length of the hypotenuse is 7.0 * sqrt(2).
Now let's find the length of the side opposite the other 45-degree angle, which we'll label as y. Since the two legs are congruent, y is also equal to 7.0 * sqrt(2).
Therefore, the lengths of the missing sides are: y = 7.0 * sqrt(2) and x = 7.0 * sqrt(2)
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Calculate each value of angle A to the nearest degree
The measure of angle A to the neasrest degree is 46°.
What is the measure of angle A?Th figure in the image is a right triangle.
Angle θ = AAdjacent to angle θ = 7.8Hypotenuse = 11.2To solve for angle A, we use trigonometric ratio
Cosine = adjacent / hypotenuse
Plug in the values and solve for A.
cosA = 7.8/11.2
Take the cos inverse
A = cos⁻¹( 7.8/11.2 )
A = 46°
Therefore, angle A is 46 degrees.
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4. What is the connection between exponential function and geometric sequence.
5. Define Moore's law. How Moore's law is associated with exponential function.
1. The connection between exponential functions and geometric sequences is that the terms of a geometric sequence are generated by repeatedly multiplying the previous term by a constant ratio, which can be expressed using an exponential function.
2. Moore's Law is associated with the exponential function because it describes a growth pattern that is exponential in nature.
1. If the first term of a geometric sequence is denoted by a_0 and the common ratio is denoted by r, then the nth term can be calculated using the formula a_n = a_0 * r^(n-1), which is equivalent to the exponential function f(n) = a_0 * r^n. Conversely, if we have an exponential function f(n) = a * r^n, then the sequence of its values for n = 1, 2, 3, ... forms a geometric sequence with first term a and common ratio r.
2. Moore's Law is a prediction made by Gordon Moore, co-founder of Intel, in 1965, that the number of transistors on a microchip would double every 18-24 months, while the cost per transistor would decrease. This has been interpreted to mean that the processing power of computers would double every 18-24 months, leading to exponential growth in computing power and an exponential decrease in the cost of computing.
Moore's Law is associated with the exponential function because it describes a growth pattern that is exponential in nature. The number of transistors on a microchip is growing at an exponential rate, which means that the rate of growth is proportional to the current number of transistors. This can be represented mathematically as an exponential function, such as y = a * e^(kx), where y is the number of transistors, x is time, a is the initial number of transistors, and k is the growth rate.
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factorization of 120
Answer:
Step-by-step explanation:
120=10*12
120=5*2*4*3
120=5*2*2*2*3
120=(2^3)*3*5
A rectangular prism holds exactly 24 unit cubes. What is the volume of the prism?
Since the rectangular prism holds exactly 24 unit cubes, the volume of the prism is equal to 24 cubic units.
How to calculate the volume of a rectangular prism?Mathematically, the volume of a rectangular prism can be calculated by using this formula:
Volume = L × W × H
Where:
L represents the length of a rectangular prism.W represents the width of a rectangular prism.H represents the height of a rectangular prism.Generally speaking, the volume of a rectangular prism is directly proportional to the number of unit cubes. Based on the information provided above, we can reasonably infer and logically deduce that volume of this rectangular prism is equal to 24 cubic units because it holds exactly 24 unit cubes.
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If NP bisects MNO, what is the measure of MP?
M
15
MP =
N
P
12
8
Measure of MP is 10 units.
What is Angle Bisector Theorem?Angle bisector theorem states that if a line segment is drawn from a vertex of a triangle to the opposite side such that it bisects the angle, then the two parts of the opposite side which are divided by the line segment is proportional to the other two sides of the triangle.
Given is a triangle MNO.
Line segment NP bisects the angle MNO.
MO is divided into two segments MP and PO.
By the Angle Bisector Theorem,
MP / PO = MN / ON
Substituting,
MP / 8 = 15 / 12
MP = (15 / 12) × 8
MP = 10
Hence the measure of MP is 10.
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Complete the square by finding the missing values.
The missing values are 81/4 and 9/2, the complete square is x² - 9x + 81/4 = ( x - 9/2 )².
What are the missing values of the square?Given square in the question;
x² - 9x + [ ] = ( x - [ ] )²
To complete the square, we use the form ax² + bx + c.
Compare the form to the square;
a = 1b = -9c = 0Now, consider the vertex form of a parabola.
a( x + d )² + e
We find d, using the formula
d = b/2a
Plug in the values
d = -9/(2×1 )
d = -9/2
Next, find the value of e, using the formula
e = c - b²/4a
Plud in the values
e = 0 - (-9)²/(4×1)
e = -81/4
Hence, the complete square will be;
x² - 9x + 81/4 = ( x - 9/2 )²
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unit 5 systems of equations and inequalities homework 4 solving systems by elimination day 2
To solve this system of equations by elimination, we need to eliminate one of the variables (either x or y) by adding or subtracting the equations.
In this case, we can eliminate x by multiplying the first equation by 2 and subtracting it from the second equation:
2x - 6y = 12 (original second equation)
-2(x - 3y = 7) (original first equation multiplied by -2)
-----------------
0x - 12y = -2
Now we have a new equation, 0x - 12y = -2, that relates only to y. Solving for y, we get:
0x - 12y = -2
-12y = -2
y = 1/6
Substituting this value of y back into either of the original equations, we can solve for x:
x - 3y = 7
x - 3(1/6) = 7
x - 1/2 = 7
x = 7 + 1/2
x = 15/2
Therefore, the solution to the system of equations is x = 15/2 and y = 1/6.
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Answer: (-4,-8)
Step-by-step explanation:
If 6 notebooks cost d dollars, how much, in dollars, does each notebook cost?
Step-by-step explanation:
6 notebooks = $d
1 notebook = $?
So
1 notebook price = $d ÷ 6
Answer:
Step-by-step explanation:
n represents the number of notebooks
d represents the cost of a notebook
n = d one notebook = d dollars
9n = 9d multiply both sides by 9
Two trains, Train A and Train B, weigh a total of 225 tons. Train A is heavier than Train B. The difference of their weights is 27 tons. What is the weight of each train?
Based on an equation, the weight of each train is as follows:
Train A = 126 tonsTrain B = 99 tons.What is an equation?An equation is an algebraic statement of the equality of two or more mathematical expressions.
An equation uses the equation symbol (=) to differentiate it from a mathematical expression that combines values, variables, constants, and numbers with mathematical operands.
The total weight of Train A and Train B = 225 tons
Let the weight of Train B = x tons
Let the weight of Train A = x + 27 tons
2x + 27 = 225
2x = 198
x = 99
Train A = 126 tons (99 + 27)
Train B = 99 tons
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Evaluate p/2– 5 when p = 14
Answer:
2
Step-by-step explanation:
p/2-5
You can use PEMDAS to help:
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
So, first we have to substitute 14 for p to get:
14/2-5
Next, comes division before subtraction, so we can rewrite the equation as this:
(14/2)-5
7-5
=2
assume you have applied for two jobs a and b. the probability that you get an offer for job a is 0.25. the probability of being offered job b is 0.20. the probability of getting at least one of the jobs is 0.40. what is the probability that you will be offered both jobs? enter your answer as a decimal rounded to two places.
Answer: the probability of being offered both jobs is 0.05, or 5%
Step-by-step explanation:
To solve this problem, we can use the formula:
P(A or B) = P(A) + P(B) - P(A and B)
where P(A or B) is the probability of getting at least one job offer, P(A) is the probability of getting an offer for job A, P(B) is the probability of getting an offer for job B, and P(A and B) is the probability of getting an offer for both jobs.
Substituting the given values, we get:
0.40 = 0.25 + 0.20 - P(A and B)
Solving for P(A and B), we get:
P(A and B) = 0.25 + 0.20 - 0.40 = 0.05
Therefore, the probability of being offered both jobs is 0.05, or 5% (rounded to two decimal places).
determine if the following graphs have a slope that is positive,negative,zero,or underfined.
A line's slope might be zero, positive, negative, or undefinable. The slope of a horizontal line is zero because it does not climb vertically (y1 y2 = 0), but the slope of a vertical line is unknown because it does not run horizontally (x1 x2 = 0).
What does a positive slope look like?The slope (m = 3.5 is positive) and y-intercept (b = 4) of the line y = 3.5x + 4 are both positive. This indicates that the y-intercept, or point (0, 4), is where the line crosses.
What does a graph's zero slope mean?A line on a plane with no upward or downward slope is known as a line with zero slope in mathematics and computer science.
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what is a capacity of a large bottle of lemonade
about 2.1134 us quarts
The cost of cultivating a rectangular field at the rate of ₹ 4 per sq. metre is ₹ 2340.
If the breadth of the field is 15 m, find the cost of fencing the field at ₹ 7.5 per
metre.
The cost of fencing the field at ₹ 7.5 per meter is ₹810.
We already know that the area of a rectangle can be calculated using the formula = l*b
We have been told that the rate is ₹ 4 per sq. meter is ₹ 2340 and the breadth is 15 m.
Using these values, we can conclude that -
= l*b * 4 = 2340
= l = 2340 / 60
= l = 39 m
We also know that the perimeter of a rectangle can be calculated using -
= 2(l+b) and the rate of fencing this perimeter is ₹ 7.5 per meter.
Using the values, we get -
= 2(39+15) * 7.5
= ₹ 810
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Two vectors are linearly dependent if and only if they are collinear.
True/False
The given statement "Two vectors are linearly dependent if and only if they are collinear" is true because one is a scalar multiple of the other.
Two vectors are linearly dependent if and only if one of them is a scalar multiple of the other. This means that if you have two vectors, say v and w, then there exists a scalar c such that v = cw or w = cv.
If v and w are collinear, then they lie on the same line and one is a scalar multiple of the other. Specifically, if v = (a, b) and w = (c, d) are collinear, then there exists a scalar k such that v = kw, which means that a = kc and b = kd.
Conversely, if v and w are linearly dependent, then one is a scalar multiple of the other, which means that they lie on the same line and are collinear.
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Choose an expression that represents the number of bracelets you have after h hours. 28 + 5h, 60 + 5h, 60 + 28h, or 5 + 60h
The correct expression that represents the number of bracelets you have after h hours would be:60 = 28 + 5h. option A (28 + 5h ) is correct.
Based on the given information, the correct expression that represents the number of bracelets you have after h hours would be:
60 = 28 + 5h
This is because you start with 28 bracelets and make 5 bracelets every hour. So after h hours, you would have made 5h bracelets, and the total number of bracelets you have would be:
Total number of bracelets = Starting number of bracelets + Number of bracelets made
Total number of bracelets = 28 + 5h
If you substitute h = 6 into the equation, you can see that after 6 hours, you would have made 5 x 6 = 30 bracelets, and the total number of bracelets you would have is:
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Question
You need 60 bracelets for a craft fair. You begin with 28 bracelets and make 5 bracelets each hou a. Choose an expression that represents the number of bracelets you have after h hours.
A. 28 + 5h B. 60 + 28h
C. 60 + 5h D. 5 + 60h
Select all equations that are true. A. 3/4 − 1/2 = 1/4 B. 9/16 − 4/8 = 5/8 C. 7/8 − 3/4 = 1/8 D. 7/15 − 1/3 = 6/15 E. 1/2 − 1/20 = 10/20
The correct expression after subtraction is,
⇒ 7/8 - 3/4 = 1/8
Option C is true.
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Now, We can all the expressions as,
A). 3/4 - 1/2 = 1/4
LHS;
⇒ 3/4 - 1/2
⇒ (6 - 4) / 8
⇒ 4/8
⇒ 1/2 ≠ 1/4
Hence, It is not true.
B. 9/16 - 4/8 = 5/8
LHS;
⇒ 9/16 - 4/8
⇒ (9 - 8)/16
⇒ 1/16 ≠ 5/8
Hence, It is not true.
C. 7/8 − 3/4 = 1/8
LHS;
⇒ 7/8 - 3/4
⇒ (7 - 6)/8
⇒ 1/8
Hence, It is true.
D. 7/15 − 1/3 = 6/15
LHS;
⇒ 7/15 - 1/3
⇒ (7 - 5)/15
⇒ 2/15 ≠ 6/15
Hence, It is not true.
E. 1/2 − 1/20 = 10/20
LHS;
⇒ 1/2 - 1/20
⇒ (10 - 1)/20
⇒ 9/20 ≠ 10/20
Hence, It is not true.
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How to convert 185cm to feet?
185 centimeter is approximately equal to 6.0696 feet
To convert 185cm to feet, we can use the following formula:
1 cm = 0.0328 feet
The conversion is the process of changing the unit of one quantity to another units
The conversion factor is defined as the number that is used to change one unit to another units by multiplying or dividing
Therefore,
The distance in feet = conversion factor × The distance in centimeter
Substitute the values in the equation
185 cm = 185 x 0.0328
Multiply the numbers
= 6.0696 feet ( rounded to four decimal places )
Therefore, 185cm is 6.0696 feet.
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Help me please it is math
−13w−7
Explanation:
−6w+(−8)+1+(−7w)
Add −8 and 1 to get −7.
−6w−7−7w
Combine −6w and −7w to get −13w.
−13w−7
Answer: -13w-7
-6w - 8 + 1 -7w
-6w + - 8 + 1 + -7w
what is 55kg in lbs?
According to the conversion, 55 kg is equal to approximately 121.25 lbs.
In the world of mathematics, measurement plays a vital role in determining the quantity, weight, and size of any object. The standard units of measurement are different in various countries, and knowing how to convert from one unit to another is essential.
The question posed is, "What is 55 kg in lbs?" Here, 'kg' is a unit of mass, commonly used in the metric system, whereas 'lbs' stands for pounds, which is a unit of weight in the Imperial system. To convert from kg to lbs, we need to multiply the given value by a conversion factor.
1 kg is equal to 2.20462 pounds. Hence, we can use this conversion factor to convert 55 kg to lbs as follows:
55 kg x 2.20462 lbs/kg = 121.2542 lbs (rounded off to two decimal places)
In conclusion, understanding measurements and being able to convert from one unit to another is a fundamental aspect of mathematics. In this case, we used the conversion factor of 2.20462 lbs/kg to convert 55 kg to lbs.
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what is the answer and am in middle school
I believe the answer is: 83 square inches.
"How so?"
First step:
11 x 5 + 7 x 4 = ?
Now, multiply.
11 x 5 = 55
Multiply once again.
7 x 4 = 28
Now add.
55 + 28 = 83.
I apologize if this is incorrect. I hope you have a lovely day! :)
Answer:
What is the area of this figure?
83 square inchesStep-by-step explanation:
You're welcome.
what is the z formula
In mathematics, Z means complex number and it is represented as (a+ib) where a is real part and b is the imaginary part.
In mathematics, the number are represented by using some certain notations, like N for all natural number, Z for all complex numbers, R for all real numbers.
Now, here the formula of Z is asked, Z is a combination of two number
Z = a+ib
Where, a is real part, b is the imaginary part and "i" is called the notation Iota that is used with the imaginary part to represent the imaginary part.
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A restaurant sells calzones for $9 and slices for $6. Friday, a total of 46 calzones and slices were sold, and the total money collected was $351. How many calzones and how many slices were sold?
Give your answer as an ordered pair (x,y), where x is the number of calzones and y is the number of slices
The restaurant sold 25 calzones and 21 slices. Our answer as an ordered pair is (25, 21).
To solve this problem, we can use a system of equations. Let x be the number of calzones sold and y be the number of slices sold. We can create two equations based on the information given:
1) x + y = 46 (the total number of calzones and slices sold)
2) 9x + 6y = 351 (the total money collected)
We can use the first equation to solve for one of the variables in terms of the other. For example, we can solve for y in terms of x:
y = 46 - x
Now we can substitute this expression for y into the second equation:
9x + 6(46 - x) = 351
Simplifying and solving for x:
9x + 276 - 6x = 351
3x = 75
x = 25
Now we can substitute this value of x back into the first equation to find y:
25 + y = 46
y = 21
So the restaurant sold 25 calzones and 21 slices. Our answer as an ordered pair is (25, 21).
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The second and third terms of a proportion are called the____.
proportion
means
transformation
reflection
repeating
Answer:
means
Step-by-step explanation:
The first term and the fourth term of a proportion are called extreme terms, and the second term and the third term are called means.
PLSSS HELP IF YOU TURLY KNOW THISSS
Answer: x = -11
Step-by-step explanation:
[tex]\frac{-x+10}{3} = 7[/tex]
⇒-x+10 = 7x3
⇒-x+10 = 21
⇒-x = 21-10
⇒-x = 11
∴ x = -11
Trade tariffs and quotas are designed to protect:
O a.
foreign aid.
O b.
international trade.
O C.
foreign producers.
O d.
domestic producers.
The total weight of a shipment of boxes is 112 pounds. There are 7 packages in the shipment, and
each package weighs the same amount. The model below can be used to determine w, the weight
of each package.
O 1.6 lbs.
O 78.4 lbs.
O 16 lbs.
O 8 lbs.
Answer: 16 lbs.
Step-by-step explanation:
If there are 7 packages and all of the packages weigh the same, then you would divide the number of packages by the total weight of the packages.
112÷7=16. 16 would be the weight of each package individually.
So, the answer is C;16 lbs.