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Richard is driving home to visit his parents. 125 of the trip are on the interstate highway where the speed limit is 65 . Norma...Asked by melissa
Richard is driving home to visit his parents125 mi of the trip are on the interstate highway where the speed limit is 65 mph Normally Richard drives at the speed limit, but today he is running late and decides to take his chances by driving at 80 mph.how many minutes will he save
Answers
Answered by
MathMate
Speed * time = distance
Time = distance / speed
Normal time = 125 mi/65 mph
Time at 80 mph = 125 mi/85 mph
The difference of the two times is the time saved (in hours)
Time = distance / speed
Normal time = 125 mi/65 mph
Time at 80 mph = 125 mi/85 mph
The difference of the two times is the time saved (in hours)
Answered by
Diana
((150/85)-(150/65) ) x 60
multiply by 60 bc they ask for MINUTES not hrs.
The answer is positive btw.
multiply by 60 bc they ask for MINUTES not hrs.
The answer is positive btw.
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