Question

Sharon is working her way through school she works two part time jobs for 37 hours a week job a pays $5.70 per hour and job b pays $7.00 per hour how many hours did she work if she made $236.90

Answer 1

x- hours for job A
y- hours for job B
x+y=37 |*7
7x+ 7y= 259
x*5,7 +y*7=236,90
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7x-5,7 x+7y-7y=259-236,9
1,3x=22,1
x=22,1:1,3
x=17 hour for job A
y=37-17=20 hours for job B