SOLUTION: Emily earns $15 per hour as music teacher and $11 per hour as swim instructor. In one week she worked a total of 37 hours and earned $459. How many hours did she work at each job
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-> SOLUTION: Emily earns $15 per hour as music teacher and $11 per hour as swim instructor. In one week she worked a total of 37 hours and earned $459. How many hours did she work at each job
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Question 905703: Emily earns $15 per hour as music teacher and $11 per hour as swim instructor. In one week she worked a total of 37 hours and earned $459. How many hours did she work at each job that week? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! music+swim=37,
15*music+11*swim=459
music=37-swim
15*(37-swim)+11*swim=459
555-15swim+11*swim=459
-4*swim=-96
swim=24 hours
music=37-swim
music=13 hours at $15 and swim=24 hours at $11
check
13+24=37
15*music+11*swim=459
15*13+11*24=459
195+264=459
459=459
ok
