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how do i simplify the equation 31=2pi/3 *r

 Apr 30, 2019
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\(31=\frac{2\pi}{3}r\\ 31=\frac{2\pi}{3}r\\ 31=r\times\frac{2\pi}{3}\\ \text{You need of get rid of the }\frac{2\pi}{3}\quad so \\ \text{Multiply BOTH sides by the reciprocal, that is }\times\frac{3}{2\pi} \)

 

 

You can finish it :)

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 May 1, 2019
edited by Melody  May 1, 2019

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