SOLUTION: An aid in the mathematical department office gets paid $3 per hour for clerical work and $8 per hour for tutoring. If she wants to work a total of 20 hours and earn at least $145,

Question 100096: An aid in the mathematical department office gets paid $3 per hour for clerical work and $8 per hour for tutoring. If she wants to work a total of 20 hours and earn at least $145, what is the maximum number of hours X she can spend on clerical work?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
An aid in the mathematical department office gets paid $3 per hour for clerical work and $8 per hour for tutoring. If she wants to work a total of 20 hours and earn at least $145, what is the maximum number of hours X she can spend on clerical work?
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Let number of hours of clerical work be "x" ; pay for this is 3x dollars
Number of hours of tutoring is "20-x"; pay for this is 8(20-x)= 160-8x dollars
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EQUATION:
pay + pay =145 dollars
3x + 160-8x = 145
-5x = -15
x = 3 (number of clerical hours)
20-x = 17 (number of tutoring hours)
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Cheers,
Stan H.

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