Write a System of Equations to Describe the Problem Situation $\frac { 1 } { 4 }$

Multiple Choice

Write a system of equations to describe the problem situation. Use guess and check to solve the problem. A boat travels 20 miles downstream in an hour. While its passengers are fishing, the tide comes in. The tidewater reaches 20 miles upstream. The trip home on still water take 1 $\frac { 1 } { 4 }$ hours. Find the speed of the current, c.

A) c = 1.5 mph
B) c = 2.0 mph
C) c = 2.5 mph
D) c = 3.0 mph
E) c = 4.0 mph