document.write( "Question 620281: assuming that y varies directly as x, if y = 50 when x = 8, find x when y = 75 \n" ); document.write( "
Algebra.Com's Answer #390047 by MsRedz123(24)![]() ![]() You can put this solution on YOUR website! If y varies directly as x. Then, y=kx where k is constant.\r \n" ); document.write( "\n" ); document.write( "y=kx \n" ); document.write( "50=k(8) \n" ); document.write( "50/8=k(8)/8 \n" ); document.write( "k=50/8 or 25/4\r \n" ); document.write( "\n" ); document.write( "y=kx \n" ); document.write( "75=(25/4)(x) \n" ); document.write( "75/(25/4)=x \n" ); document.write( "x=75(4/25) \n" ); document.write( "x=300/25 \n" ); document.write( "x=12\r \n" ); document.write( "\n" ); document.write( "Therefore, x is 12. \n" ); document.write( " |