SOLUTION: A bike is traveling at 10 mph. Wheel diameter is 28 in. Determine number of revolutions per min.
Portion of solution with problem-
n revolutions per min.
Wheel travels
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Question 1128635: A bike is traveling at 10 mph. Wheel diameter is 28 in. Determine number of revolutions per min.
Portion of solution with problem-
n revolutions per min.
Wheel travels pi * 28 * n in. in 1 min.
Wheel travels pi * 28 * n * 60 in. in 1 hr.
pi * 28 * n * 60 / (5280 * 12)
pi * 28 * n * 60 / (5280 * 12) = 10
pi * 7 * n / (88 * 3) = 10
n = 10 * 88 * 3 / (pi * 7)
10 * 88 / 7 = approx. 130
n = 120
Please explain solution with missing steps. Non-homework.
Answer by josgarithmetic(39626) (Show Source): You can put this solution on YOUR website!
Diameter 28 inches is radius 14 inches. CIRCUMFERENCE is inches.
IN ONE MINUTE, the bike travels how far? How many INCHES?
INCHES in 1 MINUTE
---------inches in 1 minute
How many circumferences of inches are in 10560 inches?
Compute this.
About 120
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