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

Maths is so cool

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
Respond to this Question
Similar Questions

math
This is an SAT prep question. Senai customized her bicycle by exchanging the front wheel for a wheel that had one half the diameter of the back wheel. Now Senai rides the bicycle, how many revolution does the front wheel make for each … 
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? 
Geometry
The wheel of an adult's bicycle has diameter 26 in. The wheel of a child's bicycle has diameter 18 in. To the nearest inch, how much farther does the larger bicycle wheel travel in one revolution than the smaller bicycle wheel? 
Precalc
1. If a bicycle wheel has a diameter of 27 inches, find the radian measure of the angle through which the wheel turns as the bicycle travels a distance of one mile. thanks!! 
Math
Juan races his bicycle for 196ft a wheel of his bicycle turns 28 times as the bicycle travels this distance. What is the diameter of the wheel? 
algebra
Justin races his bicycle for 90M . A wheel of his bicycle turns 45 times as the bicycle travels this distance. What is the diameter of the wheel? 
math
The wheel of a bicycle has a diameter of 25 inches. How many turns does the wheel make in traveling 1 mile (5,280 feet)? 
math
If A Bicycle Wheel Has A Diameter Of 27 Inches, Find The Radian Measure Of The Angle Through Which The Wheel Turns As The Bicycle Travels A Distance Of 1 Mile 
Geography
the diameter of a bicycle wheel is 26 inches.how many feet will the bicycle travel if the wheel turns 20 times? 
math
The diameter of Sheree's bicycle wheel is 0.705 m. Caculate how many turns the bicycle wheel will make if she rides the bicycle 1 km. So far I've found out that the circumference of the wheel is C=πd =3.14(0.705) =2.2137 m