SOLUTION: Joanne works at a fast food restaurant and earns $20 per week. Every two weeks she spends $15 on shopping. How much money will she have at the end of the year?

Question 1020463: Joanne works at a fast food restaurant and earns $20 per week. Every two weeks she spends $15 on shopping. How much money will she have at the end of the year?

Found 2 solutions by fractalier, stanbon:
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
In two weeks she earns $40. In that same two weeks, she spends $15.
Thus she saves $40-$15 = $25 each two weeks.
There are 26 two-week periods in a year, so she saves
26($25) = $650
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Joanne works at a fast food restaurant and earns $20 per week. Every two weeks she spends $15 on shopping. How much money will she have at the end of the year?
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S(w) = 20w - 15(w/2)
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Ans: S(52) = 20*52 - 15(52/2) = 1040-390 = $650
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Cheers,
Stan H.
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