document.write( "Question 856552: If y varies directly as x, what is the value of y in these ordered pairs?
\n" );
document.write( "(5,8) and (10,y) \n" );
document.write( "
Algebra.Com's Answer #516029 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If y varies directly as x, what is the value of y in these ordered pairs? \n" ); document.write( "(5,8) and (10,y) \n" ); document.write( "------------ \n" ); document.write( "Varies directly means y = k*x \n" ); document.write( "8 = k*5 \n" ); document.write( "k = 1.6 \n" ); document.write( "--- \n" ); document.write( "y = 1.6*10 --> y = 16 \n" ); document.write( "===================== \n" ); document.write( "Or, \n" ); document.write( "5/8 = 10/y \n" ); document.write( "5y = 80 \n" ); document.write( "y = 16 \n" ); document.write( " \n" ); document.write( " |