Back to 5.4 Solve Applications with Systems of Equations

5.4 Exercise 74

Avg difficulty 2.5

Solve Uniform Motion Applications In the following exercises, translate to a system of equations and solve.

Sarah left Minneapolis heading east on the interstate at a speed of 60 mph. Her sister followed her on the same route, leaving two hours later and driving at a rate of 70 mph. How long will it take for Sarah’s sister to catch up to Sarah?

OpenStax Elementary Algebra 2e, 5.4 Solve Applications with Systems of Equations, exercise 74

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