Dave works two jobs. He works at the grocery store making $12 per hour and works at the car wash making $15 per hour. If he work
ed a total of 25 hours and made $333, how many hours did he work at the car wash? Set up the two equations and then solve.
1 answer:
Answer:
11 hours
Step-by-step explanation:
let he works at first store x hours and at car wash y hours. Then
x+y=25
multiply by 4
4x+4y=100 ...(1)
12x+15y=333
divide by 3
4x+5y=111 ... (2)
(2)-(1) gives
y=111-100=11
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