RuthDankwah9377 RuthDankwah9377

21-08-2017
Mathematics

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A car is traveling at 46 mph. it its tires have a diameter of 26 inches, how fast are the car's tires turning? express the answer in revolutions per minute rounded to the nearest .01

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musiclover10045 musiclover10045

21-08-2017

Circumference of the tire:

PI x diameter = 3.14 x 26 = 81.6814 Round to 81.68

Speed of the car in inches per minute:

46*5280*12/60 = 48576 inches per minute

48576/81.68 = 594.711

Round to 594.71 revolutions per minute

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