Homework Help: 5th grade Math

Posted by Brandi on Monday, March 19, 2012 at 5:10pm.

I need help with the question below. A bicyle tire has a diameter of 24 inches. If a tire rotates for 20 revolutions about how far has the bike rider ridden? Use 3.14 for pi. I know to find the circumference you would do 24 x 3.14 which equal 75.36. I'm not sure what to do with the number of revolutions though. Do you multiply 75.36 times 20? Thanks

5th grade Math - Ms. Sue, Monday, March 19, 2012 at 5:12pm
Yes. Multiply 75.36 inches by 20 to find how many inches the rider has ridden.
5th grade Math - omah, Thursday, March 22, 2012 at 8:30pm
Yes. Multiply 75.36 inches by 20 to find how many inches the rider has ridden.

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