jenniferkeitz76 jenniferkeitz76

27-07-2017
Mathematics

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If y varies inversely as the square of x and y=4 when x=5, find y when x is 2

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musiclover10045 musiclover10045

27-07-2017

need to kind K

Y=k x 1/x^2 = k/x^2

Find K when y=4 & x=5

Y=k/x^2 =

4=k/5^2=

4=k/25

K=4*25 =100

When x = 2

Y=100/2^2

Y=100/4

Y=25

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