document.write( "Question 1197917: y varies directly as x and inversely as the square of z. y=30 when x=18 and z=3. Find y when x=64 and z=4. \n" ); document.write( "
Algebra.Com's Answer #831372 by josgarithmetic(39616)\"\" \"About 
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\"y=kx%2Fz%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"yz%5E2%2Fx=k\"\r
\n" ); document.write( "\n" ); document.write( "\"k=yz%5E2%2Fx\"\r
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\n" ); document.write( "\n" ); document.write( "\"k=30%2A3%5E2%2F18\"\r
\n" ); document.write( "\n" ); document.write( "\"k=270%2F18\"\r
\n" ); document.write( "\n" ); document.write( "\"k=15\"\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28y=15x%2Fz%5E2%29\"\r
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