SOLUTION: If 17 textbooks cost 150.45 pounds, how much will 28 cost? (Direct and Inverse Propotion Question- Student In year 10)

SOLUTION: If 17 textbooks cost 150.45 pounds, how much will 28 cost? (Direct and Inverse Propotion Question- Student In year 10)

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Question 523009: If 17 textbooks cost 150.45 pounds, how much will 28 cost?
(Direct and Inverse Propotion Question- Student In year 10)
Answer by chibisan(131) (Show Source): You can put this solution on YOUR website!
17books = 150.45pounds
1book = 150.45/17 pounds
28books = 150.45/17 x 28 =247.8pounds
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