SOLUTION: one family drove at 6mph and another family drove at 14 mph. when withh the second family be 20 miles ahead of the first?
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Question 310790: one family drove at 6mph and another family drove at 14 mph. when withh the second family be 20 miles ahead of the first?
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
ASSUMING THEY STARTED @ THE SAME TIME FROM THE SAME PLACE & THEY ARE ON THE SAME ROAD, THEN:
D=RT
20=(14-6)T
20=8T
T=20/8
T=2.5 HOURS THEY WILL BE 20 MILES APART.
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