Mathematics Middle School

the following equation has been solved incorrectly. Explain the students error​

The Following Equation Has Been Solved Incorrectly. Explain The Students Error

Answers

Answer 1
On the right side of the equation, when the student combined like terms, 7x and -4x, they did not combine them correctly. Instead of combining them correctly, the student forgot to include the sign of the -4x which caused the sum of the two terms to be 11x instead of 3x. Hope this helps!
Answer 2
What he said ^^ no problem

Related Questions

Identify if the problem is a commutative property, distrudited property, associative property, or an identity property

3 + (5 + 7) = (3 + 5) + 7

(3)[5(7)] = (3)[7(5)]

5 + 0 = 5

Answers

Answer:

associative, associative, identity

Step-by-step explanation:

pretty simple, no explanation

Consider a sequence given by the formula a n = a n -1 − 5, where a1 = 12 and n ≥ 2.
Create an explicit formula of the sequence. Use the explicit formula to find of the
sequence. Give your answer in the answer space.
a100

Answers

Answer:

a=  n+6  n

Step-by-step explanation:

n=an−1−5

Step 1: Flip the equation.

an−6=n

Step 2: Add 6 to both sides.

an−6+6=n+6

an=n+6

Step 3: Divide both sides by n.

an  n  =  n+6  n  a=  n+6  n

At a petting zoo, there are 2 chickens, 4 deer, 3 donkeys, and 6 goats. What is the ratio of goats to the total number of animals written in simplest form

Answers

There would be 6:9

Answer:

2:5

Step-by-step explanation:

There are 6 goats and 9 other animals, with a total of 15 animals, which gives us 6:15. The simplest form that 6:15 can be is 2:5. Hope this helps!

Choose all pairs of points that are reflections of each other across both axes. PLEASE HELP I NEED THE EXTRA CREDIT

Answers

Answer:

The first and The third,

Step-by-step explanation:

The first and the thrid

A town's total allocation for firefighter's wages and benefits in a new budget is $600,000. If wages are calculated at $40,000 per firefighter and benefits at $20,000 per firefighter. How many firefighters can the town employ if they spend their whole budget?

enter the numerical answer only (no words or symbols).

Answers

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

PLS HELP WILL GIVE BRAINLY!!!1

Answers

Answer:

x2+1/5x+2

Step-by-step explanation:

Answer:

Might be 230

Step-by-step explanation:

Moving at a constant rate, a trench machine is advertised as being able to dig 36-foot trenches in 40 minutes. A farmer uses the same machine to dig trenches that are 58.5 feet long, with each trench taking 65 minutes to complete.


Some one help plz

Answers

Answer:

3rd option from the top

:)

A bag of equally sized rhinestones weighs 16 ounces. Each rhinestone weighs 0.016 ounce.

If you have 2 bags of rhinestones, how many rhinestones do you have?

Answers

Answer:

2000

Step-by-step explanation:

16*2=32

32/0.016=2000

plz help me because i can't find the number 45 in the graph chat

Answers

The answer is H because per every 3 parents there is 45 students, 45/3 is 15 and if you look at H y1= x15 and y2=x30 and so n so

Answer:

The answer is H

I can tell because there is a line half between 30 and 60 and 45 is halfway between 30 and 60 so.

Step-by-step explanation:

Thirty-five more than .8 times a number is the same as 43 less than the product of -7 and the number.

Answers

Answer:

.8 x n = -7 x n - 43

Step-by-step explanation:

35+8x=43-(-7+x)
35+8x=43+7-x
8x+x= 50-35
9x= 15
x= 15/9
x= 1.67
Please correct me if I am wrong

Johnny has 20 coins. They are nickels and dimes. If Johnny has $1.40, how many dimes does Johnny have?

Answers

Answer:

Step-by-step explanation:

I think you should subtract

Hope this helps you

Johnny would have 12 dimes. 12 times 10 = $1.20. Then, 8 nickels. 8 times 5 = $0.40.

So, Johnny would have 12 dimes and 8 nickels.

PLZ HELP
Explain how compound interest is better than simple interest when it comes to saving money.

Answers

Answer:

With compound interest, you earn interest on interest, thereby accumulating more money than if you were earning simple interest.

Step-by-step explanation:

Answer: Compound interest keeps adding small amounts of interest as often as the given time period states. If monthly, for example, 1/12 of the annual rate is added to the principal at the end of the first month. Then the next month, the interest is figured on the new higher amount. Each month the principal grows a little instead of waiting until a year has passed to compute the interest on just the original principal.

Step-by-step explanation:

THREE milkshakes cost $9.75. At this rate, how much do TWO milkshakes cost? * THE CHOICES ARE: $6.50,$3.25,$3.75,$4.88, CHOOSE ONE PLEASE TELL ME WITH PROOF.

Answers

Answer:

6.50

Step-by-step explanation:

9.75 divided by 3  = 3.25 each milkshake is 3.25 so 3.25 x 2 = 6.50

Answer:

6.50

Step-by-step explanation:

9.75 divided by 3 is 3.25 times that by 2 then you get 6.50

Juanita runs every fifth day and swims every seventh day. If Juanita runs and swims today, in how many days will she run and swim again on the same day?

Answers

Answer: She will run and swim again on the same day after 21 days.

Juanita runs every third day and swims every seventh day.

Step-by-step explanation: Juanita runs every third day and swims every seventh day.

Answer: running and swimming will fall on the same day in 21 more days.

BRAINLIST and POINTS help

Answers

6.08 it’s saying my answer has to be longer sjdnekjendndndf

Answer:

6.18 is where point [tex]D[/tex] is located at.

Step-by-step explanation:

Hope this helps you.

Put the numbers in ascending

Answers

Answer:

? what numbers

Step-by-step explanation:

Answer:

Where are the numbers?

Step-by-step explanation:

Put it in the comments and i'll answer it there...

Brainliest Plsss!!!

May someone please help this is part of my grade. I take this really seriously and i need good answers :(

Answers

Its been a while since ive done this but i think its A: 9 , B: 8, C: 7, D: 2, E: 10, F: 3
The other guy is correct please give him Brainly I do t deserve it

i put a picture of the question. please help <3

Answers

Answer: 904.78

Explanation:

V=4

3πr3=4

3·π·63≈904.77868

ANSWER: 904.78 hope this helps

For the function f(x) = 3x-11, identify the range for f(6), f(7), and f(11)

Answers

Answer:

f(6)= 7        f(11)= 22

f(7)= 10  

Step-by-step equation:

[tex]f(6)= 3(6)-11 = 7\\f(7)= 3(7)-11 = 10\\f(11)= 3(11)-11 = 22[/tex]

F(6)=7 F(11)=22 F(7)=10 hopes this help

Tom drove 130 miles at the speed of 65 mph, and then 200 more miles at the speed of 50 mph. What was his average speed for the entire trip?

Answers

57.5 is the answer for sure

Brandon's car used 15 gallons to travel 435 miles. At what rate does the car use gas,
miles per gallon?

Answers

Answer:

29 miles per gallon

Step-by-step explanation:

Take the miles and divide by the gallons

435/15

29 miles per gallon

ANSWER: 29 miles per gallon!

Hello Guys... I need help...
Emily used the number line to find the quotient for -15 ÷ 5. What errors did she make? Select three correct answers.

The arrows should point in the negative direction.

The small arrows should end in the same place as the large one.

The arrows should end on negative 15.

The arrows should start at zero.

There should be 5 small arrows.
And, don't guess... and go on other website...

Answers

Answer

divide 15 by 5 and what do u get is the awser

Step-by-step explanation:

Answer:

1,3,AND 4

Step-by-step explanation:

YOUR WELCOME

Help please!!!!! I'll give brainliest!

Answers

Answer:

#1. Yes, it is a right triangle

Step-by-step explanation:

What is the y-intercept in the equation y=4x-3?

Answers

Answer:

-3

Step-by-step explanation:

y = mx +b

mx = slope

b = y intercept

hope this helps!

Answer:

-3

Step-by-step explanation:

The y intercept (when already written in slope-intercept form) is on the side of the equation without the actual variable y. The number with x is the slope. In this specific equation, the slope is 4 because it is with the variable x, and the y intercept is the other number, -3. The 3 is negative because subtraction signs are actually negative signs too.

Hope this helps!! Have a great day ^^

Suppose that y is directly proportional to x, and y = 112 when x = −16. What is the constant of proportionality?
A) −9
B) −7
C) 1/7
D) 7

Answers

Answer:

Step-by-step explanation:

-7

Answer:

H

Step-by-step explanation:

H

Please help!!!
A large community college has professors and lecturers. The total number of faculty members is 136. The school reported that they have 6 professors for every 11 lecturers. How many professors does the community college employ?

Answers

answer : 125
explain: none

Answer:

48 professors

Step-by-step explanation:

First, add 11 + 6 = 17

Here is what I did after that,

136 / 17 = 8

I divided 136 by 17 because for every 11 lecturers there are 6 professors, and to get the total amount of how many times there are 6 professors and 11 lecturers.

After that, you would multiply 8 * 6, since there are 6 professors.

So, the answer that I got would be 48.

Hope this helps :)

BRAINLIEST AND 35 POINTS HELP ASAP

Answers

Answer:

I think that the answer is B

Some one tlk to me in french, just use google translate
Qui veut parler avec moi dans une autre langue principalement pour le plaisir et en partie parce que rien de mieux à faire

Answers

Answer:

bonjour, je le ferai. Comment se passe ta journée?

Step-by-step explanation:

salut je suis prêt à parler en français

I need help this is due at 4:00 and it's 3:13

Answers

a=9

Steps
5•____=15
5•3=15
since we know 5•3=15 we plug in 3 into the formed equation 3•_____=a

3•3=9

Wondering if someone may help....

Answers

Answer: 36

Step-by-step explanation:

Answer:

57 is the answer

Step-by-step explanation:

May i please have brainiest.

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