document.write( "Question 428269: Two automobiles leave the same location traveling in opposite directions. The blue car travels x mph; the red car travels y mph. How long will it be before the cars are 200 miles apart, if the red car is traveling 10 mph slower? \n" ); document.write( "
Algebra.Com's Answer #297720 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Two automobiles leave the same location traveling in opposite directions. The blue car travels x mph; the red car travels y mph. How long will it be before the cars are 200 miles apart, if the red car is traveling 10 mph slower? \n" ); document.write( "---- \n" ); document.write( "Equations: \n" ); document.write( "y = x-10 mph \n" ); document.write( "--- \n" ); document.write( "The separation rate of the two cars is x+y or x+x-10 = 2x-10 \n" ); document.write( "---- \n" ); document.write( "time = distance/rate \n" ); document.write( "--- \n" ); document.write( "time = 200/(2x-10) = 200/(2(x-5)) = 100/(x-5) hrs. \n" ); document.write( "================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============ \n" ); document.write( " |