SOLUTION: jeannie has 10 books overdue at the library. she rembers she checked out 2 science books two weeks before she checked out 8 childeren's books. The daily fine per book is $0.20. If

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Question 356348: jeannie has 10 books overdue at the library. she rembers she checked out 2 science books two weeks before she checked out 8 childeren's books. The daily fine per book is $0.20. If her total fine is $11.60, how long was each book over due?
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi,

Let d be the days the 8 books were over due. Then (d+14) will be for the science books

8*.20d + 2*.20(d+14) = $11.60

simplify and Solve

1.60d + .4d + 5.60 = $11.60

2d = 6.00

d = 3 

3 days for the children's books

17 days for the science books



check your answer

8*.20*3 + .4*17 = 4.80 + 6.80 = $11.60 

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