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

question 15

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

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