document.write( "Question 790896: A private plane traveled from seattle to a rugged wilderness, at an average speed of 270 mph. On the return trip, the average speed was 216 mph. If the total traveling time was 8 hours, how far was Seattle from the wilderness? \n" ); document.write( "
Algebra.Com's Answer #479313 by stanbon(75887) ![]() You can put this solution on YOUR website! A private plane traveled from seattle to a rugged wilderness, at an average speed of 270 mph. On the return trip, the average speed was 216 mph. If the total traveling time was 8 hours, how far was Seattle from the wilderness? \n" ); document.write( "---------------------------- \n" ); document.write( "S to W DATA: \n" ); document.write( "rate = 270 mph ; time = x hours; distance = r*t = 270x miles \n" ); document.write( "-------- \n" ); document.write( "W to S DATA: \n" ); document.write( "rate = 216 mph ; time = (8-x) hours ; distance = r*t = 216(8-x) miles \n" ); document.write( "--------- \n" ); document.write( "Equation: \n" ); document.write( "distance = distance \n" ); document.write( "270x = 216*8 - 216x \n" ); document.write( "---------- \n" ); document.write( "486x = 216*8 \n" ); document.write( "---- \n" ); document.write( "x = 3.5556.. \n" ); document.write( "---- \n" ); document.write( "Distance from S to W = 250*3.5556 = 888.89 miles \n" ); document.write( "=============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=================== \n" ); document.write( " \n" ); document.write( " |