+0  
 
0
41
1
avatar+63 

Marion has a bicycle that she is planning to take for a ride. The rim of the rear wheel lies 41 cm from the center of the wheel. The tire itself has a thickness of 3 cm.In order to Marion to ride her bicycle 96,712 cm, approximately how many rotations will the rear wheel make?

a. 15.9
b. 350
c. 376
d. 5133

 Feb 26, 2019
 #1
avatar+98091 
+1

The radius of the wheel is  41 + 3  = 44cm

 

Each rotation the wheel travels  2pi (44) =   88pi cm

 

So....the number of rotations is

 

96712  / [88pi ]  ≈  350  rotations

 

 

cool cool cool

 Feb 26, 2019

11 Online Users

avatar