document.write( "Question 1109382: y is directly proportional to x, and y = 20 when x = 6. What is y when x = 14? \n" ); document.write( "
Algebra.Com's Answer #724372 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! y is directly proportional to x, and y = 20 when x = 6. What is y when x = 14? \n" ); document.write( "---------- \n" ); document.write( "y = k*x \n" ); document.write( "20 = k*6 \n" ); document.write( "k = 10/3 \n" ); document.write( "================== \n" ); document.write( "What is y when x = 14? \n" ); document.write( "y = 14*10/3 = 140/3 \n" ); document.write( "-------------------- \n" ); document.write( "You don't have to solve for k: \n" ); document.write( "20/6 = y/14 \n" ); document.write( "Cross multiply \n" ); document.write( "6y = 280 \n" ); document.write( "y = 140/3 \n" ); document.write( " \n" ); document.write( " |