document.write( "Question 569654: Please help, I have set this equation up several times and it is wrong! An athlete ran 6 mph and later cycled 20 mph to complete a 90 mile course. How far did she run and cycle \n" ); document.write( "
Algebra.Com's Answer #367417 by Alan3354(69443) You can put this solution on YOUR website! Please help, I have set this equation up several times and it is wrong! An athlete ran 6 mph and later cycled 20 mph to complete a 90 mile course in 6.25 hours. How far did she run and cycle \n" ); document.write( "---------------------- \n" ); document.write( "d = r*t \n" ); document.write( "t = d/r \n" ); document.write( "d/6 + (90-d)/20 = 6.25 \n" ); document.write( "10d + 3(90-d) = 375 \n" ); document.write( "7d + 270 = 375 \n" ); document.write( "d = 15 miles running \n" ); document.write( "75 miles cycling \n" ); document.write( " \n" ); document.write( " |