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.

1

Jawapan

2016-03-14T12:25:47+08:00
8.95b + 3.95 × 3 = 47.65

8.95b + 11.85 = 47.65

b = (47.65 - 11.85) ÷ 8.95

b = 4