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1 vote
Kid has a car he gave

User Cmbaxter
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1 Answer

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First, since the diameter of the tire is 18 inches, we can find the perimeter of the tire using the following formula:


\begin{gathered} P=\pi\cdot d \\ \Rightarrow P=3.14\cdot18=56.52in \end{gathered}

we have that the tire has a perimeter of 56.52in. In feet, we have:


56.52in=4.71ft

then, if the driveway is 200 feet long, then, dividing the length of the driveway by the perimeter of the tire we get:


(200)/(4.71)=42.46\approx42

therefore, the fewest rotations of the tire on the driveway is 42

User Muichkine
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