Write a System of Equations to Describe the Problem Situation

question 49

Multiple Choice

Write a system of equations to describe the problem situation. Use guess and check to solve the problem. A boat travels 12 miles upstream to a fishing spot. The trip takes 1.2 hours. The return trip, downstream, takes 0.8 hour. Find the speed of the current, c.

• A) c = 2.0 mph
• B) c = 2.5 mph
• C) c = 2.8 mph
• D) c = 3.0 mph
• E) c = 3.5 mph

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Definitions:

Overline

A line drawn over a symbol or number, often used in mathematics to indicate a repeating decimal or a geometric figure's conjugate.

Denominator

The bottom number in a fraction that shows into how many parts the whole is divided.

Three Figure Accuracy

The accuracy of a number rounded to the nearest hundred; signifies a level of precision.

Pair of Equations

A pair of equations that are simultaneously solved to identify a shared solution for their variables.