SOLUTION: A student works two part-time jobs. He earns $8 an hour for working at a college library and $15 an hour for construction work. To save time for study, he limits his work to 25 hou
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Question 791999: A student works two part-time jobs. He earns $8 an hour for working at a college library and $15 an hour for construction work. To save time for study, he limits his work to 25 hours a week. If he enjoys the work at the library more, how many hours can he work at the library and still earn at least $300 a week?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of hours worked at library
= number of hours worked at construction
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Neglecting fractions of hours, he can work 10 hrs
at library and still earn $300/wk
--------------------
check:
OK
--------
Suppose he works 11 hrs at library
This is not true, so he must limit hrs worked
at library to 10 hrs
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