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Given that y is inversely proportional to x^2 and x is always positive. If y=27 when x = 6, calculate the value of x when y=8.

 Jan 6, 2021
 #1
avatar+196 
+1

6^2*27=972

8*x^2=972

x=sqrt(121.5)

 Jan 6, 2021
 #2
avatar+1247 
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AVEN JOHNNNNNNNNN

CoolStuffYT  Jan 6, 2021
 #3
avatar+45 
+2

So inversely proportional means that \(x^2y\) is always the same, and \(6\times6=36, 36\times27=972\)\(972/8=121.5\), so x is the square root of 121.5

 Jan 6, 2021
 #4
avatar+196 
0

Yes inverse proportion means the product is the same while direct proportion means the quotient is the same.

 Jan 6, 2021

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