document.write( "Question 261399: Two airplanes leave phoenix at the same time and fly in opposite directions. One plane travels 60 miles per hour faster than the other. After 2.5 hours they are 1700 miles apart. What is the rate of the slower plane? \n" ); document.write( "
Algebra.Com's Answer #192573 by Greenfinch(383)![]() ![]() You can put this solution on YOUR website! One does X mph, the other x + 60 mph \n" ); document.write( "Total is thus 2X + 60 mph \n" ); document.write( "After 2.5 hours, they are 2.5(2X + 60) miles away, which is 1700 \n" ); document.write( "5X + 150 = 1700 \n" ); document.write( "5X = 1550 \n" ); document.write( "x = 310 mph, the other does 370 mph \n" ); document.write( " |