Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Doreen and Irena plan to leave their houses at the same time, roller blade towards each other, and meet for lunch after 2 hours on the road. Doreen can maintain a speed of 7.7 miles per hour, which is 70% of Irena's speed. If they meet exactly as planned, what is the distance between their houses?
A. 15.4 mi
B. 26.18 mi
C. 22 mi
D. 37.4 mi
Answer: D
Mathematics
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