A rocket car on the bonneville salt flats is traveling at a rate of 640 miles per hour. How much time would it take for the car
2 answers:
Answer:
0.6 hour or 36 minutes
Step-by-step explanation:
We can use proportion to solve this problem.
640 miles = 1 hour
384 miles = x
cross-multiply
640 x = 384
Divide both-side of the equation by 640
=
(On the left-hand side of the equation 640 at the numerator will cancel-out 640 at the denominator, while on the right-hand side of the equation 384 will be divided by 640)
x =
x = 0.6 hour
or
x = 0.6×60 = 36 minutes
Therefore the time it would take the car to travel 384 miles is 0.6 hour or 36 minutes
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