document.write( "Question 857501: Given that P varies jointly as S and V^2,and that P=18 when S=9 and V=15.find V when S=81 and P=32 \n" ); document.write( "
Algebra.Com's Answer #516633 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "Let k represent the constant of proportionality
\n" ); document.write( " P = kSV^2
\n" ); document.write( "18= k9*225
\n" ); document.write( "18/2025 = k
\n" ); document.write( " P/kS = V^2
\n" ); document.write( "\"32%2F%2818%2F225%2981\" = V^2
\n" ); document.write( "\"32%2A225%2F%2818%2A81%29+=16%2A225%2F%289%2A81%29+\" = V^2
\n" ); document.write( "V =\"+sqrt%2816%2A225%2F%289%2A81%29%29\" = 60/27 = 20/9 \n" ); document.write( "
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