document.write( "Question 125952: I'm very confused on how to work this D=RT problem. The problem is as follows \"A bus leaves Miami for San Francisco traveling at a rate of 40 mph. Three hours later a car leaves Miami for San Francisco traveling at 55 mph. How far from Miama does the car overtake the bus?\r
\n" ); document.write( "\n" ); document.write( "My formula: 40x+55(x-3)=x
\n" ); document.write( " 40x+55x-165=x
\n" ); document.write( " 95x-165=x \r
\n" ); document.write( "\n" ); document.write( "I know this cannot be right, please help..
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Algebra.Com's Answer #92311 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
This type of problem is not easy. I've struggled with some.
\n" ); document.write( "My approach is to divide the distances that the 40 mi/hr bus
\n" ); document.write( "covers into 2 parts. First, how far does that bus go in 3 hrs?
\n" ); document.write( "I call where it is after 3 hrs the starting point. Now
\n" ); document.write( "the 55 mi/hr car starts and I put a stopwatch on them both
\n" ); document.write( "\"d\" = distance 55 mi/hr car covers from start to the meeting point
\n" ); document.write( "\"t\" = time for the 55 mi/hr car to cover the distance
\n" ); document.write( "In 3 hrs the 40 mi/hr bus covers
\n" ); document.write( "\"d+=+40%2A3\"
\n" ); document.write( "\"d+=+120\"mi
\n" ); document.write( "here are the equations
\n" ); document.write( "\"d+-+120+=+40t\"
\n" ); document.write( "\"d+=+55t\"
\n" ); document.write( "----------------------
\n" ); document.write( "\"d+=+120+%2B+40t\"
\n" ); document.write( "Set \"d\" in the 1st equation = \"d\" in the 2nd equation
\n" ); document.write( "\"120+%2B+40t+=+55t\"
\n" ); document.write( "\"15t+=+120\"
\n" ); document.write( "\"t+=+8\"hrs
\n" ); document.write( "So, the 55 mi/hr car has travelled for 8 hrs when they meet
\n" ); document.write( "\"d+=+55t\"
\n" ); document.write( "\"d+=+55%2A8\"
\n" ); document.write( "\"d+=+440\"mi answer
\n" ); document.write( "I hope you can follow it and I didn't get my logic twisted
\n" ); document.write( "somewhere
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