Solomon reads 4 pages of a book every 6 minutes. Which proportion could be solved to find x, the number of minutes it will take to read 9 pages?

A. 4/6 = x/12
B. 6/4 = 9/x
C. 6/4 = x/9
D. 4/19 = x/9

1 answer

B. 6/4 = 9/x

This proportion can be solved by cross multiplying to find x.

6x = 4 * 9
6x = 36
x = 36/6
x = 6

Therefore, it would take Solomon 6 minutes to read 9 pages.