document.write( "Question 375367: Suppose z caries directly with x and inversely with the square of y. When x=5 and y=9, x=900. Find the equation of variation. \n" ); document.write( "

Algebra.Com's Answer #266937 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "z varies directly with x and inversely with the square of y
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document.write( "Let k represent the constant of proportionality
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document.write( "If I am understanding your question properly
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document.write( "When x=5 and y=9, z=900  
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document.write( "900 = k(5/81)
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document.write( "(81/5)900 = k
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document.write( "14580 = k
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document.write( "equation of variation
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