document.write( "Question 360209: Greg rides his bike 15 miles in the same amount of time glen rides his bike 21 miles. Glen is traveling 12mph faster than Greg. What if gregs speed? \n" ); document.write( "
Algebra.Com's Answer #257133 by mananth(16949) You can put this solution on YOUR website! Greg rides his bike 15 miles in the same amount of time glen rides his bike 21 miles. Glen is traveling 12mph faster than Greg. What if gregs speed? \n" ); document.write( ".. \n" ); document.write( "Greg speed be x mph \n" ); document.write( "Glen speed x+12 mph \n" ); document.write( "... \n" ); document.write( "t=d/r \n" ); document.write( "15/x = 21/(x+12) \n" ); document.write( "15(x+12)=21x \n" ); document.write( "15x+180=21x \n" ); document.write( "180=6x \n" ); document.write( "x= 30 mph ------ greg \n" ); document.write( "30+12 = 42 mph ---- glen's speed \n" ); document.write( ".. \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |