Question

Solve for x.

x/15 = 3 4/5.

A. 45 4/5
B. 57
C. 19/75
D. 3 18/19

Answer 1

`(x)/(15) = 3 (4)/(5) \\ \\ (x)/(15) = (3 * 5 + 4)/(5) \\ \\ (x)/(15) = (15+4)/(5) \\ \\ (x)/(15) = (19)/(5) \\ \\ x = (19)/(5) * 15 \\ \\ x = (285)/(5) \\ \\ x = 57 \\ \\ Answer: \fbox {x = 57}`