Conversions of Units - Middle

The distance from Jacob’s house to his grandmothers is 5 ½ miles. What is this distance in feet?

a. 12125 feet
b. 22500 feet
c. 29040 feet
d. 34335 feet

Answer: c

Explanation:
We must use conversions to solve this problem. There is 5280 feet in 1 mile so we set up the solution as follows:

1 mile = 5280 feet
5 ½ miles = unknown feet

To find the unknown multiply the 5 ½ miles by the number of feet per mile as follows:
5 ½ miles x (5280 feet / 1 mile) = 29040 feet
Note that the units for miles cancel out and we are left with only feet, which is what the problem is asking for.

For additional information go to: Conversions of Units

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