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schepotkina [342]
4 years ago
10

Melissa holds two jobs. In Job A she earns $14 per hour, and in job B she earns $12.50 per hour. One week Michelle worked a tota

l of 45 hours and earned $600. How many hours did she work in each job that week. Show your equation and work that you used to solve the equation.
Mathematics
1 answer:
DIA [1.3K]4 years ago
7 0
Let x= hours spent job A
let y= hours spent job B

14x + 12.50y = 600
x + y = 45
x=-y +45
14(-y+45) + 12.5y = 600
-14y + 630 + 12.5
-1.5x + 630 = 600
-1.5x=-30
x=20

(20) + y = 45
y= 25
20 hours job A, 25 hours job B
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