Question 1151884
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Using logical reasoning instead of formal algebra....<br>
(1) If all 17 items were toys, the cost would be 17*$6 = $102.
(2) The actual total cost was $55 more than that.
(3) Each book costs $5 more than each toy.
(4) Therefore, the number of books was 55/5 = 11.
(5) That of course means 6 books.<br>
CHECK: 11($11)+6($6) = $121+$36 = $157<br>