document.write( "Question 813149: Denise drove to her parents' house at a rate of 70 mph. She came back by the same route, but drove at a rate of 80 mph. If the round trip took no more than 3 hours, what is the greatest possible distance she could have traveled to her parents? \n" ); document.write( "
Algebra.Com's Answer #489611 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! a+b<=3, \n" ); document.write( "70a=80b \n" ); document.write( "a = 8/5, b = 7/5 \n" ); document.write( "112 miles maximum \n" ); document.write( " |