SOLUTION: Pam drove to work on Wednesday at 40 miles per hour and arrived one minute late. She left home at the same time on Thursday, drove 45 miles per hour and arrived one minute early. H

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Question 210768: Pam drove to work on Wednesday at 40 miles per hour and arrived one minute late. She left home at the same time on Thursday, drove 45 miles per hour and arrived one minute early. How far does pam drive to work?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT
D=40(T+1/60)
D=45(T-1/60)
40T+40/60=45T-45/60
40T-45T=-45/60+40/60
-5T=-5/60
5T=1/15
T=(1/15)/5
T=1/15*5
T=5/15
T=1/3 HR.
D=40(1/3+1/60)
D=40(20+1)/60
D=(40*21)/60
D=840/60
D=14 MILES.
ROOF:
D=45(1/3-1/60)
14=45(20-1)/60
14=45(19/60)
14=45*.31667
14~14