+0  
 
0
174
1
avatar

The tires on your bicycle have a diameter of 22 inches. How many rotations does each tire make when you travel 800 feet? Round your answer to the nearest whole number.

Guest Feb 16, 2017

Best Answer 

 #1
avatar+19495 
+10

The tires on your bicycle have a diameter of 22 inches.
How many rotations does each tire make when you travel 800 feet?
Round your answer to the nearest whole number.

 

Let p = perimeter circle
Let d = diameter circle
Let n = number of rotations

 

perimeter circle:
\(\begin{array}{|rcll|} \hline p &=& d\cdot \pi \quad &| \quad d = 22\ in. \\ p &=& 22\cdot \pi \ in. \\ \hline \end{array}\)

 

rotations:

\(\begin{array}{|rcll|} \hline n &=& \dfrac{ 800\ feet \cdot \frac{12\ in.}{1\ feet}} {p} \quad &| \quad 1 feet = 12\ inches \\ n &=& \dfrac{800\cdot 12}{22\cdot \pi} \\ n &=& 138.898859426 \text{ rotations } \\ \hline \end{array}\)


Round your answer to the nearest whole number: 139 rotations

 

laugh

heureka  Feb 16, 2017
 #1
avatar+19495 
+10
Best Answer

The tires on your bicycle have a diameter of 22 inches.
How many rotations does each tire make when you travel 800 feet?
Round your answer to the nearest whole number.

 

Let p = perimeter circle
Let d = diameter circle
Let n = number of rotations

 

perimeter circle:
\(\begin{array}{|rcll|} \hline p &=& d\cdot \pi \quad &| \quad d = 22\ in. \\ p &=& 22\cdot \pi \ in. \\ \hline \end{array}\)

 

rotations:

\(\begin{array}{|rcll|} \hline n &=& \dfrac{ 800\ feet \cdot \frac{12\ in.}{1\ feet}} {p} \quad &| \quad 1 feet = 12\ inches \\ n &=& \dfrac{800\cdot 12}{22\cdot \pi} \\ n &=& 138.898859426 \text{ rotations } \\ \hline \end{array}\)


Round your answer to the nearest whole number: 139 rotations

 

laugh

heureka  Feb 16, 2017

6 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.