document.write( "Question 272412: if y varies directly as x and inversely as z, find y whe x=3 and z=2, if y=90 when x=30 and z=1.5 \n" ); document.write( "
Algebra.Com's Answer #199285 by scott8148(6628)\"\" \"About 
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y * z = k * x\r
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\n" ); document.write( "\n" ); document.write( "90 * 1.5 = k * 30 ___ k = 4.5\r
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\n" ); document.write( "\n" ); document.write( "y * 2 = 4.5 * 3 ___ y = 6.75
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