Amanda, Bryce, and Corey enter a race in which they have to run, swim, and cycle over a marked course. Their average speeds are given in the table. Corey finishes first with a total time of 1 hours 45minutes, Amanda comes in second with a time of 2 hours 30 minutes, and Bryce finishes last with a time of 3 hours. Find the distance (in miles) for each part of the race.(hint: use the motion formula d=rt)
average speed(mi/h)
amanda: 10 running, 4 swimming, and 20 cycling
Bryce: 7.5 runnnig, 6swimming,and 15cycling
corey: 15 running, 3 swimming,40 cycling
a. write the system of equations
b.set

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