document.write( "Question 560012: write a general formula to describe the variation. y varies directly with x; y=5 when x=30 \n" ); document.write( "
Algebra.Com's Answer #363612 by Alan3354(69443)\"\" \"About 
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write a general formula to describe the variation. y varies directly with x; y=5 when x=30
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\n" ); document.write( "y = kx
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\n" ); document.write( "5 = k*30
\n" ); document.write( "k = 1/6
\n" ); document.write( "--> y = x/6
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