Question

James has $20 in his wallet and makes $10 per hour. Kelly has $50 in her wallet but only makes $8 per hour.

How many hours of work will it take for these two people to have the same amount of money?

Answer 1

At 15 hours of work they will be equal.

Explanation:

James: y = 10x + 20

Kelly: y = 8X + 50

Set them equal to each other and solve

10x + 20 = 8x + 50 Subtract 8x from both sides of the equation

2x + 20 = 50 Subtract 20 from both sides of the equation

2x = 30 Divide both sides by 2

x =15