SOLUTION: x represents the number of textbooks purchased at $27 per book, and y represents the total amount of money spent on textbooks. After writing an equation for this situation, what i
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Question 85197: x represents the number of textbooks purchased at $27 per book, and y represents the total amount of money spent on textbooks. After writing an equation for this situation, what is the cost of 4 textbooks? Answer by uma(370) (Show Source):
You can put this solution on YOUR website! Let the number of books purchased be x
Cost of 1 book = $27
So cost of 'x' books = 27x
Total amount spent on books = y
Thus the equation is: y = 27x
So cost of 4 books:
Replace x by 4
So y = 27*4
= 108
So cost of 4 books = $108
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