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Makovka662 [10]
3 years ago
13

How many full revolutions does a car tire with a diameter of 25 inches make when the car travels 1 mile

Mathematics
2 answers:
Nitella [24]3 years ago
7 0

Answer: 806.72 full rotations.

Step-by-step explanation: There are 5,280 ft in a mile (a good thing to have memorized) multiply that by 12 to find inches. 5280*12 = 63360. Then we divide this by the circumference of the circle. C = 2πr. The radius is half the diameter so C = dπ. 25π = 78.54. Then we divide 63360/78.54 = 806.72 rotations.

Alexeev081 [22]3 years ago
3 0

Step-by-step explanation:

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We could go further and create one equivalent fraction.  Multiply the first two terms by 4/4, obtaining:

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------ - ------ - -----  =>  ----------------------  =>  -------------------

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Other equivalent expressions exist here.

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