document.write( "Question 990098: judy drove at a rate of 45 mph from her home to her sister's house and back again at a rate of 55 mph. If she spent a total of 2.5 hours driving, how far does Judy live from her sister's \n" ); document.write( "
Algebra.Com's Answer #610197 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! judy drove at a rate of 45 mph from her home to her sister's house and back again at a rate of 55 mph. If she spent a total of 2.5 hours driving, how far does Judy live from her sister's \n" ); document.write( "================= \n" ); document.write( "Avg speed of the RT = 2*55*45/(55+45) = 49.5 mi/hr \n" ); document.write( "Rt distance = 49.5*2.5 = 123.75 \n" ); document.write( "--> 61.875 miles each way \n" ); document.write( " |