c + r = 4.5
14c + 8r = 51
solve by substitution or elimination
As part of her training routine for basketball, Shaylle alternates between cycling and running for exercise. She cycles at a rate of 14 mph and runs at a rate of 8 mph. If she spends 4.5 hours exercising and covers a total of 51 miles, how much time did she spend on each exercise?
1 answer