Solve Applications with Systems of Equations · Try It 8
Translate to a system of equations and then solve:
Erin spent 30 minutes on the rowing machine and 20 minutes lifting weights at the gym and burned 430 calories. During her next visit to the gym she spent 50 minutes on the rowing machine and 10 minutes lifting weights and burned 600 calories. How many calories did she burn for each minutes on the rowing machine? How many calories did she burn for each minute of weight lifting?
OpenStax, Elementary Algebra 2e · §5.4 Solve Applications with Systems of Equations · Try It 8
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