SOLUTION: During a sale,a customer Can buy one book For b dollars. Each additional book costs d dollars less than The first book. For example, The cost of the Second book is b—d dollars.
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Question 1141361: During a sale,a customer Can buy one book For b dollars. Each additional book costs d dollars less than The first book. For example, The cost of the Second book is b—d dollars. Which of the following represents The total cost, in dollars of 5 books during the sale?
A) 2b—5d
B)2b—d
C)5b—5d
D)5b—4d
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
i believe selection D is the answer.
first book is b dollars.
second book is b - d dollars.
third book is b - d dollars.
fourth book is b - d dollars.
fifth book is b - d dollars.
sum of the b's is 5
sum of the d's is 4
total cost is 5b - 4d
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