OpenStudy (anonymous):

2 years ago
OpenStudy (anonymous):

2 years ago
OpenStudy (anonymous):

i already did A just need help with B

2 years ago
OpenStudy (luffingsails):

Use the answer you got from A to help you solve B. A complete rotation of the tire, covers the distance you got in answer A. So, divide 5280 ft by the circumference to find out how many times it will rotate around.

2 years ago
OpenStudy (luffingsails):

@js7474

2 years ago
OpenStudy (anonymous):

????

2 years ago
OpenStudy (anonymous):

i dont know how to do that?

2 years ago
OpenStudy (luffingsails):

2 years ago
OpenStudy (anonymous):

Formula: C=2πr C=2π2.5 C=2π2.5=15.71

2 years ago
OpenStudy (anonymous):

@luffingsails

2 years ago
OpenStudy (luffingsails):

Yes, C = 15.71 ft. Now divide 1 mile (5280 ft) by C. 5280 / 15.71 = # of tire rotations.

2 years ago
OpenStudy (anonymous):

?

2 years ago
OpenStudy (luffingsails):

Solving: The number of tire rotations is 336. 5280 ft / 15.71 ft = 336 rotations.

2 years ago
OpenStudy (anonymous):