Question

On Monday, Charlie worked x hours. James worked 4 hours less than Charlie, and Sam worked twice as many hours as James. Which expression represents how many hours Sam worked on Monday?

a: 2x

b: 2x - 4

c: x-4

d: 4 - 2x

e: 2(x - 4)

Answer 1

e. 2(x -4)

Explanation:

You want an expression for Sam's hours, if Sam worked twice as many as James, and James worked 4 hours less than Charlie's x hours.

Translation

Charlie worked x hours.

James worked 4 hours less, so James worked (x -4) hours.

Sam worked twice as many hours as James, so Sam worked 2(x -4) hours.