Question

Mr. Lopez wrote the equation 32g+8g-10g=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 ” 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?

Answer 1

Answer: D

Wilhem

Explanation:

Edge2020

Answer 2

Wilhem

Explanation:

The given equation is

`32g+8g-10g=150`

Step 1 : Add 32g and 8g.

`(32g+8g)-10g=150`

`(32+8)g-10g=150`

`40g-10g=150`

Step 2: Subtract 10 from 40.

`(40-10)g=150`

`30g=150`

Step 3: Divide both sides by 30, find the value of g.

`(30g)/(30)=(150)/(30)`

`g=5`

The value of g is 5.

Therefore, Wilhem is correct.