Back to 4.2 Solve Applications with Systems of Equations

4.2 Exercise 81

Avg difficulty 2.5

Translate to a system of equations and solve.

A river cruise boat sailed 80 miles down the Mississippi River for four hours. It took five hours to return. Find the rate of the cruise boat in still water and the rate of the current.

OpenStax Intermediate Algebra 2e, 4.2 Solve Applications with Systems of Equations, exercise 81

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