Question

Keith exercises x hours a week. Troy exercises three hours less than Keith and Joe exercises two times more than Troy. Which expression represents the amount of time Joe exercises?

A)
2(3x)
B)
2x - 3
C)
2x + 3
D)
2(x - 3)

Answer 1

The answer is D because

Explanation:

Keith = x

And Troy exercises three hours less than Keith. Thus,

Troy = x - 3

And Joe exercises two time more than Troy. Thus,

Joe = 2(x - 3)

Answer 2

If you would like to know which expression represents the amount of time Joe exercises, you can calculate this using the following steps:

Keith ... x hours a week
Troy ... three hours less than Keith: x - 3
Joe ... two times more than Troy: 2 * (x - 3)

The correct result would be D) 2 * (x - 3).