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Mathematics 7 Online
OpenStudy (anonymous):

the number of revolutions made by a bicycle wheel of 28-inch diameter in traveling 1/2 mile is closest to: A) 720 B) 180 C) 360 D) 120

OpenStudy (anonymous):

C. Circumference= 2 x Pi x Radius Or 2x 3.14x 14 = 87.964594 inches per complete revolution A half mile is 31680 inches 31680/87.964594= 360.144 Therefore 360 revolutions of a 28 inch wheel will be closest to a half mile

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