Question 991157: A car is traveling 20 miles per hour. Convert this to cm per second. Please show me how to get the answer. Found 2 solutions by Alan3354, Edwin McCravy:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A car is traveling 20 miles per hour. Convert this to cm per second. Please show me how to get the answer.
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1 mile = 5280 feet
1 foot = 12 inches
1 inch = 2.54 cm
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1 hour = 3600 seconds
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See what you can do.
I think you should use unit multipliers.
In order to be able to get rid of an "old" unit in a NUMERATOR
(DENOMINATOR) and bring in a "new" unit in its place:
Create a unit multiplier such that:
1. The unit multiplier has the "old" unit in its DENOMINATOR
(NUMERATOR) and the "new" unit in its NUMERATOR (DENOMINATOR).
2. The numerical coefficients of the numerator and denominator
of the unit multiplier must be such that the numerator and
denominator are equal.
Then cancel all the units that will cancel:
And we are left with this:
Edwin
