31-03-2016
Mathematics

contestada

The diameter of a bysicle tires is 2.5 ft. How many revolutions of the tires does it take to travel 1 mile?Use 5280 ft=1 mile.Round to the nearest tenth ....plss help me...tnx

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apologiabiology apologiabiology

31-03-2016

ok find circumference sinc that is what touches the grownd
C=pid
d=2.5
c=2.5pift
aprox pi=3.14 for problem
c=2.5(3.14)
c=7.85ft
how many 7.85ft does it take to get 5280 ft
7.85 times how many=5280
divide both sides by 7.85
how many=672.611
tenth
672.6

answer is 672.6revolutions
aprox pi=3.14 for problem

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