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Chapter 5: Q. 5.26 (page 599)
Solve the system by substitution.
The solution set is .
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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鈥檚 sister to catch up to Sarah.
In the following exercises, translate to a system of equations and solve.
Maxim has been offered positions by two car dealers. The first company pays a salary of \(10,000 plus a commission of \)1,000 for each car sold. The second pays a salary of \(20,000 plus a commission of \)500 for each car sold. How many cars would need to be sold to make the total pay the same?
When Gloria spent 15 minutes on the elliptical trainer and then did circuit training for 30 minutes, her fitness app says she burned 435 calories. When she spent 30 minutes on the elliptical trainer and 40 minutes circuit training she burned 690 calories. Solve the system for e, the number of calories she burns for each minute on the elliptical trainer, and c, the number of calories she burns for each minute of circuit training.
In the following exercises, solve the systems of equations by substitution.
In the following exercises, translate to a system of equations and solve.
The difference of two supplementary angles is 24 degrees. Find the measure of the angles.
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