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Hugh bought some magazines that cost $3.95 each and some books that cost $8.95 each. He spent a total of $47.65. If Hugh bought 3 magazines, how many books did he buy?
The equation that models the problem is 3.95m + 8.95b = 47.65, where m is the number of magazines and b is the number of books

Respuesta :

3.95m + 8.95b = 47.65 ; bought 3 magazines so m = 3

substitute m = 3 into the equation above

3.95 (3) + 8.95b = 47.65

11.85 + 8.95b = 47.65
             8.95b = 47.65 - 11.85
             8.95b = 35.8
                    b = 35.8 / 8.95
                    b = 4

answer: Hugh bought 4 books
TKing99
3.95(3) + 8.95=47.65
11.85+8.95=47.65

subtract 11.95 from both sides

8.95b=35.8

divide 8.95 from both sides

b=4

Hugh Bought 4 Books

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