Question

Uma wants to buy a video game system for $270. She has $60 and is saving $30 each week. Solve the equation 30w + 60 = 270 to find how many week w it will take Uma to save enough to buy the system.

A. 8 weeks
B. 6 weeks
C. 7 weeks
D. 9 weeks

Answer 1

C. 7 weeks

Explanation:

30w + 60 = 270

- 60 -60

subtract 60 from both sides of the equal sign.

30w = 210

We need to isolate the variable, which is (w), so divide both sides by 30.

w = 7

It will take 7 weeks for Uma to save enough money to buy the video game system. So the answer is (c).

Answer 2

C.7 weeks

Explanation:

Subtract 60 on both sides then you get: 30w=210, then divide both sides and you get w=7, so it'll take 7 weeks