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Hi! I'm struggling greatly with these last two questions for my precalculus homework assignment. I've already attempted it like 5 times and I keep getting lost. Any help is welcome please! The radius of the front tire is 8 inches.

 

1. The rear wheels of DeMarius’ car complete 4/5 of a rotation for every full rotation of a front wheel. What is the radius, in feet, of a rear wheel on the car? Write your answer as a simplified fraction.

 

2. DeMarius’ original design for his car used rear wheels with a radius of 12 inches. What is the measure of the central angle of this rear wheel such that the arc length is equivalent to that of a full rotation of the rear wheel that is actually used on DeMarius’ car?

 Mar 17, 2021
 #1
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try 5/6 for the first fraction question. Let me know what happens.

 Mar 17, 2021
 #2
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https://web2.0calc.com/questions/someone-help-me-please_2 

check this out, it will help you greatly :)

 Mar 17, 2021
 #3
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Thank you! I'll check it out :) 

Guest Mar 18, 2021

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