document.write( "Question 704081: Two marathon runners leave the same point at the same time and travel in opposite directions. one runs at a rate that is 0.75 miles per hour faster than the other. after 3 hours they are 44.25 miles apart. how far did each runner travel?
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Algebra.Com's Answer #433910 by sachi(548)![]() ![]() You can put this solution on YOUR website! let one runner runs at x miles/hr \n" ); document.write( "the other runs at (x+0.75) miles/hr \n" ); document.write( "they travel in opposite directions \n" ); document.write( "in one hr the distance between them is x+(x+0.75) miles=2x+0.75 \n" ); document.write( "so in 3 hrs the distance=3(2x+0.75)=6x+2.25 \n" ); document.write( "so 6x+2.25=44.25 \n" ); document.write( "or 6x=44.25-2.25=42 \n" ); document.write( "or x=7 miles/hr=speed of one runner \n" ); document.write( "speed of other DISABLED_event_one= 7.75 miles/hr \n" ); document.write( "the distance traveled in 3 hrs by \n" ); document.write( "1st runner=7*3=21 iles \n" ); document.write( "2nd runner=7.75*3 =23.25 miles \n" ); document.write( "ans \n" ); document.write( " |