document.write( "Question 956192: If z varies directly with x and inversely with y and x=6, y=2, and z=15, find z when x=4 and y=9 \n" ); document.write( "
Algebra.Com's Answer #584182 by stanbon(75887)\"\" \"About 
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If z varies directly with x and inversely with y and x=6, y=2, and z=15, find z when x=4 and y=9
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\n" ); document.write( "z = k*x/y
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\n" ); document.write( "Solve for \"k\" using \"x=6, y=2, and z=15\"
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\n" ); document.write( "15 = k*6/2
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\n" ); document.write( "30 = 6k
\n" ); document.write( "k = 5
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\n" ); document.write( "Equation:
\n" ); document.write( "z = 5*x/y
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\n" ); document.write( "find z when x=4 and y=9
\n" ); document.write( "z = 5*4/9
\n" ); document.write( "z = 20/9
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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