Need help, and must SHOW ALL WORK for this problem: You leave at the same time e

Question

Need help, and must SHOW ALL WORK for this problem: You leave at the same time every day, and walk to your 8o'clock class. On Monday you averaged 4 miles per hour and were oneminute late. On Wednesday you averaged 5 miles per hour and wereone minute early. Find the exact time that you should walk onFriday to get to class on time. Need help, and must SHOW ALL WORK for this problem: You leave at the same time every day, and walk to your 8o'clock class. On Monday you averaged 4 miles per hour and were oneminute late. On Wednesday you averaged 5 miles per hour and wereone minute early. Find the exact time that you should walk onFriday to get to class on time.

Explanation / Answer

D= distance T=on time time 4mph=.066666miles/min 5mph=.08333 Monday D/(T+1)=.06666 Wednesday D/(T-1)=.083333 Solve for D and set equal to each other .06666T+.066666=.083333T-.083333 Solve for T=8.998176 min Then solve for D D=.06666(8.998176)+.06666=.666478miles D/T=.07407miles/min=4.4442mph Speed to walk to class 4.4442mph

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