Topic is Solving Systems by Elimination. Need the work
- 7x + 3y =- 24
2x - 4y =- 12

Answer:

The answer is the first choice and the last choice.

Step-by-step explanation:

The first one is already solved for y, so when you plug 9 into the equation in the x spot since 9 is the x-coordinate of the point, you get -2, which is correct because it is the corresponding y-value.

The second one is a mess when trying to solve and it clearly doesn't yield the right answer.

For the last one, when you solve for y and then plug in 9 for x, you get -2, the y-value making it correct.

Answer:

the correct answer is the second one

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

When you are trying to find if they are equivalent, you only want to use one value. If they are both positive, it doesn't mean that they are quivalent. They would have to be the same.

y = 3x + 0 is the answer I believe.

Answer: choice A

Step-by-step explanation:

The linear inequality represented by the graph  is y≥1/3x-1

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

Let us find slope of line passing through points (0, -1) and (3, 0)

Slope = 0+1/3

=1/3

y intercept we have to find

0=1/3(3)+b

b=-1

So equation of line is y=1/3x-1

As the shading is away from origin, we use the greater than or equal to symbol.

y≥1/3x-1

Hence, the linear inequality represented by the graph  is y≥1/3x-1

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Work Shown:

8/3 = (6+2)/3

8/3 = 6/3 + 2/3

8/3 = 2 + 2/3

8/3 = 2 & 2/3

The whole part is 2. The fractional part is 2/3.

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Another way you could do the problem is to use long division as shown in the diagram below.

The result of the long division is

8/3 = 2 remainder 2

The quotient 2 forms the whole part and the remainder is the numerator of the fractional part 2/3.

So that's another way to get 2 & 2/3

Answer:

9x² - 42x + 49

Step-by-step explanation:

Given

(3x - 7)² = (3x - 7)(3x - 7)

Each term in the second factor is multiplied by each term in the first factor, that is

3x(3x - 7) - 7(3x - 7) ← distribute both parenthesis

9x² - 21x - 21x + 49 ← collect like terms

= 9x² - 42x + 49

Answer:

24

Step-by-step explanation:

40 divided by 5 = 8

8 x 3 = 24

Plz mark me brainsliesttttt

Answer:

A. It provides carbon monoxide to help plants grow.

Step-by-step explanation:

The only incorrect option is that carbon monoxide is required by plant, but the correct statement would be carbon dioxide is required my plants, for its growth, which helps to perform the process of photosynthesis.

The rest of the statements are correct.

As, the atmosphere acts as a blanket, which protects the earth from the harmful rays of the sun.

And, atmosphere constitute of various gases, which enables the living organisms to breath.

And, the atmosphere protects from any meteors entering from space.  

Answer:

Z^10

Step-by-step explanation:

Answer:

multiply 5*2=10

your answer will be =z^10

Step-by-step explanation:

Answer:

95 = x

85 = z

75 = y

Step-by-step explanation:

**remember** all triangles contain 180 degrees

this means that the triangle to the left should add up to 180 to we can set up this equation

180 = 60 + 25 + x

180 = 85 + x

95 = x

now **remember** a flat line is 180 degress so x + z is 180... we can set up this equation:

x + z = 180

plug in x = 95 from before

95 + z = 180

z = 85

**remember** again that a triangle in 180 degrees so for the right one we can set up this equation by pluggging in the z=85

180 = 20 + 85 + y

180 = 105 + y

75 = y

Answer:

first option

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180° , thus

x = 180° - (60 + 35)° = 180° - 95° = 85°

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

z is an exterior angle of the triangle , thus

z = 60° + 35° = 95°

Using the sum of angles in a triangle, then

y = 180° - (95 + 20)° = 180° - 115° = 65°

Thus

x = 85°, y = 65°, z = 95°

Answer:

Step-by-step explanation:

 in this problem we want to find who earns more between Liam and Mathiew

given

Liam earned $1,200 in 2 weeks

Matthew earned $1,450 in 4 weeks

Another way to find out who earns more per week is to find their weekly earns

for Liam earned $1,200 in 2 weeks

in a week he will earn= 1200/2

=$600 per week

for Mathew earned $1,450 in 4 weeks

in a week he will earn= 1450/4

=$362.5 per week

In a week Liam earns more

Answer:

It would be around 5 cents an ounce

Step-by-step explanation:

0.04958333333 would be the answer but you have to round to the nearest cent so the correct and proper answer would be .05 cents per ounce

Answer:

Ok, so first, at the end of the equation, It says "+ 4" , right? So you put a point on positive 4 on the y-axis (the one that goes up and don, the vertical line.). Then, 2x means that's your slope, but since your graph only goes up to five, you gotta count down ward. So, go down from your point on the y-axis (4) twice and over to the LEFT (<--) once. Plot your point where you end up. then use a straightedge like a ruler, and connect your two points on the graph, and you have your line!

Hope this helps!

Answer:

it is cubix 12

Step-by-step explanation:

yw hope it helps!

Answer:

10 inches

Step-by-step explanation:

[tex]\frac{192}{375}[/tex]=[tex]\frac{8}{x}^{3} }[/tex]

[tex]\frac{192}{375}[/tex]=([tex]\frac{512}{x^{3} }[/tex])

x^3=512*[tex]\frac{375}{192}[/tex]

x^3=1000

[tex]3\sqrt{x^{3} }[/tex]=[tex]3\sqrt{1000}[/tex]

x=10 in

Answer:

it equals 10

Step-by-step explanation:

Answer:

Option 2

Step-by-step explanation:

Step 1: Translate

"a number" = x

"product" means multiply

"-2/3" = -2/3

"is" means equal

"-9/10" = -9/10

Step 2: Set up equation

-2/3x = -9/10

Step 3: Solve for x

Answer:

5.8

Step-by-step explanation:

87/15 = 5.8

What the government is trying to achieve is to incease the output within the borders of the country which will result to: D. increasing GDP.

GDP stands for gross domestic product. It is the monetary value of of goods and services produced in a country over a period of time by the final user.

GDP aacounts for all output that are generated within a country's border.

Therefore, the macroeconmic goal that the government aims to achieve through its given actions is: D. increasing GDP.

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Answer:reducing unemployment

Step-by-step explanation:just took test

Answer: x = 6

Step-by-step explanation:

m<CAD = m<BAC

m<CAD = 4x

m<CAD + m<BAC = m<BAD

4x + 4x = 10x - 12

8x = 10x - 12

-10x -10x

-2x = -12

x = -12/-2

x = 6

Answer:

Step-by-step explanation:

let y be the total charges

given that the hour is h

and the cost for raw material is r

therefore

1. The first hour of service call = $60

2. For each additional hour= 25h

 3. 30% over the cost of the materials.= 30/100*r=0.3r

total charges

y=60+25h+0.3r

therefore the expression is

y=60+25h+0.3r

Answer:

The answer would be 'C'

It follows the criteria accurately.

Answer:

No

Step-by-step explanation: because multiple points have the same x value and it fail the vertical line test

Answer:

y = x+5

Step-by-step explanation:

First find the slope

m = ( y2-y1)/(x2-x1)

   = ( 7-3)/(2 - -2)

   ( 7-3)/(2+2)

   4/4

  1

Then slope intercept form is

y = mx+b where m is the slope and b is the y intercept

y = 1*x+b

y = x+b

Substitute a point into the equation

7 = 2+b

7-2 =b

5=b

y = x+5

Answer:

M=1

Step-by-step explanation:

find the slope (M)

the slope is 1

Hope this helps Bodhi,

Answer:

-12

Step-by-step explanation:

I got it right on edgen

Same number on both dice ( in first throw) + Different numbers ,with an even sum (in second throw) + An odd sum(third throw) + An odd sum(fourth throw) + Different numbers ,with an even sum (in fifth throw)

From the given ,question Abbie, Chloe, and Xander are playing a dice game.

They are playing with two dices.

The game rules are;

Same number on both dice = +3

Different numbers, with an even sum = +1

An odd sum = -2

After five rounds, score of Chloe = +1

1 = 3 + 1 + (-2) + (-2) + 1

⇒ Same number on both dice ( in first throw) + Different numbers ,with an even sum (in second throw) + An odd sum(third throw) + An odd sum(fourth throw) + Different numbers ,with an even sum (in fifth throw)

If we alter the arrangements, In each case you will get sum as (+1), as integers satisfy both Commutativity and Associativity with respect to addition.

Complete question is;

Abbie, Chloe, and Xander are playing a dice game. The game consists of ten rounds. In each round, each person takes a turn rolling two dice and earns or loses points based on what they role. Points are awarded according to the following table:

Same number on both dice +3

Different numbers, with an even sum +1

An odd sum -2

In the first five rounds, Chloe had a combined score of 1 point. Determine what five types of rolls she had in these first rounds. Express your answer in complete sentences.

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Answer:

-2

-2

-2

-2

-2

The least number of rounds will be four. She will need to throw four, (different numbers, with an even sum).

Step-by-step explanation:

Answer:

lmk if i am incorrect

Step-by-step explanation:

78/100 is .78

there is a 78 percent chance that a woman has a pet

Answer:

DDDDDDDDDDDDDd

Step-by-step explanation:

Answer:

its d

Step-by-step explanation:

its steeper than the others

Answer

She would have 3.4 chicken nuggets i she spent $5 so she would have 3 chicken nuggets.

Step-by-step explanation:

17.00 divided by 5 = 3.4 or round down to 3.

                                                        hope it helps :b