SOLUTION: Books cost 50¢ and pamphlets 15¢ at the book sale. If Mr. Jones spent $90 and purchased 15 more pamphlets than he did books, how many pamphlets did he buy ?

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Question 881128: Books cost 50¢ and pamphlets 15¢ at the book sale. If Mr. Jones spent $90 and
purchased 15 more pamphlets than he did books, how many pamphlets did he buy ?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

Let x represent the number of books x%2B15 the number of pamplets

.5x + .15(x+15) = $90

      .65x = 90-2.25 = 87.75

         x = 135, number of books.  150 pamplets 135+%2B+15

CHECKING our answer***

.5%2A135+%2B+.15%2A150+=+67.50+%2B+22.50 = $90

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