Math
A bicycle wheel is 30 inches in diameter.
a. to the nearest revolution, how many times will the wheel turn if the bicycle is ridden for 3 miles.
b. suppose the wheel turns at a constant rate of 2.75 revolutions per second. What is the linear speed in miles per hour of a point on the tire?

For a...
Circumference = (pi)(d) = 30pi in
3 mi = 190,080 in
190,080 / 30pi = 6336 / pi = 2017 revolutions
Not sure about the second part.posted by Michael

Part A
(3miles/1)*(5280ft/1mi)*(12in/1ft)*(1rev/15πin) is appx 4033 revolutions
Part B
(2.75rev/1sec)*(60sec/1min)*(60min/1hr)*(15πin/1rev)*(1ft/12in)*(1mi/5280ft) is appx 7.4 mph
posted by Elizabeth

The answers an owl as you at house of jug jug bird y'all finen
posted by Kidrauhl

Maths is so cool
posted by Kidrauhl

So this is a sensible answer basically you convert inches into miles which is about 190,080 inches then you do 30 times pie and divide them both
posted by Kidrauhl
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