Question

Mr. Lopez wrote the equation 32 g + 8 g minus 10 g = 150 on the board. Four students explained how to solve for g. Alyssa: "I added 32 and 8 to get 40, subtracted 10 to get 30, and then subtracted 30 from 150 to find the value of g, which is 120." Rahul: "I added 32, 8, and 10 to get 50, and then I subtracted 150 to find the value of g, which is –100." Toni: "I subtracted 18 from 32 to get 14, which I then divided into 150 to find the value of g, which is 10 and StartFraction 5 Over 7 EndFraction." Wilhem: "I added 32 and 8 to get 40, subtracted 10 to get 30, and then divided both sides by 30 to find the value of g, which is 5." Which student’s work is correct? Alyssa Rahul Toni Wilhem

Answer 1

Answer:

Created by

kylintoro

Terms in this set (10)

Rahul solved the equation 2(x - -1/8) -3/5x = 55/4. In which step did he use the addition property of equality?

Step 1

Step 2

Step 3

Step 4

step 3

What is the input value for which the statement f(x) = g(x) is true?

1.5

Sean began jogging to live a healthier lifestyle. On his first run, he ran the one-half mile. He increased his workouts by adding two miles a month to his run. He wrote the equation f(x)= 0.5 + 2x to model his progress. The variable x represents the number of

months he runs

Which input value produces the same output value for the two functions on the graph?

x=-2

A number, n, is added to 15 less than 3 times itself. The result is 101. Which equation can be used to find the value of n?

3n - 15 + n = 101

Sonji paid $25.00 for two scarves, which were different prices. When she got home she could not find the receipt. She remembered that one scarf cost $3 more than the other. What was the price of the more expensive scarf?

$11.00

Solve the equation.

−10x + 1 + 7x = 37

x=-12

Consider the equation 3p - 7 + p = 13. What is the resulting equation after the first step in the solution?

4p - 7 = 13

Fiona solved the equation shown.

1/3 - 1/3(6x - 3) = -13/2

What is the missing step of her solution?

Simplify by combining like terms.

Simplify by using addition property of equality.

Simplify by using the multiplication property of equality.

Simplify by using the division property of equality.

Simplify by combining like terms.

Deepak wrote out the steps to his solution of the equation 5/2 - 3x - 5 + 4x = -7/4

Which step has an incorrect instruction?

Step 1

Step 2

Step 3

Step 4

step 1