document.write( "Question 982177: The quantity y varies directly as x and inversely as z. When x is 10 and z is 4, y is 15. What is y when x is 20 and z is 6? \n" ); document.write( "
Algebra.Com's Answer #603039 by josgarithmetic(39617)\"\" \"About 
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\"y=kx%2Fz\"\r
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\n" ); document.write( "\n" ); document.write( "\"y%28z%2Fx%29=%28kx%2Fz%29%28z%2Fx%29\"
\n" ); document.write( "\"yz%2Fx=k\"\r
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\n" ); document.write( "\n" ); document.write( "\"k=%2815%2A4%29%2F10\"
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