document.write( "Question 440677: y varies directly with the square of x and inversely with z. If y = 16 when x=2 and z=3, find k, the constant of proportionality, and find y when x=5 and z=4 \n" ); document.write( "

Algebra.Com's Answer #304393 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "y varies directly with the square of x and inversely with z:  
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document.write( " y = kx^2/z
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document.write( "16 = k 2^2/3   | y = 16 when x=2 and z=3
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document.write( " 12 = k
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document.write( "find y when x=5 and z=4
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document.write( " y = 12*5^2/4
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document.write( " y = 75 \n" );
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