document.write( "Question 195415: y varies jointly as x and z and inversely as the product of w and p, and y=45/160 when x=5,z=9,w=5, and p =8\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "the directions are to find an equation of variation in which the following are true. \n" );
document.write( "
Algebra.Com's Answer #146554 by stanbon(75887) ![]() You can put this solution on YOUR website! y varies jointly as x and z and inversely as the product of w and p \n" ); document.write( "--- \n" ); document.write( "y = k[xz/wp] \n" ); document.write( "---------------------- \n" ); document.write( "and y=45/160 when x=5,z=9,w=5, and p =8 \n" ); document.write( "--- \n" ); document.write( "(45/160) = k[5*9/5*8] \n" ); document.write( "(45/160) = k[9/8] \n" ); document.write( "k = (8/9)(45/160) \n" ); document.write( "k = 5/20 \n" ); document.write( "k = 1/4 \n" ); document.write( "------------- \n" ); document.write( "Therefore the equation is \n" ); document.write( "y = (1/4)[xz/wp] \n" ); document.write( "========================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |