document.write( "Question 36623: Please help me, I don't know how to set this up:
\n" ); document.write( "Smith traveld 45 miles. Jones traveled 70 miles. Jones averaged 5 miles per hour more than Smith and his trip took 1/2 hour longer than Smith's. How fast was each one traveling?
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Algebra.Com's Answer #22512 by Paul(988)\"\" \"About 
You can put this solution on YOUR website!
Jones travelled at x+5
\n" ); document.write( "Simth travelled at x
\n" ); document.write( "TIME (of distance 2) = DISTANCE/SPEED1 - DISTANCE/SPEED2
\n" ); document.write( "Equation:
\n" ); document.write( "\"45%2Fx-70%2F%28x%2B5%29=1%2F2\"
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 -->Cross multiply:
\n" ); document.write( "\"45%28x%2B5%29-70%28x%29=%28%28x%29%28x%2B5%29%29%2F2\"
\n" ); document.write( "\"225-25x=%28x%5E2%2B5x%29%2F2\"
\n" ); document.write( "\"450-50x=x%5E2%2B5x\"
\n" ); document.write( "\"x%5E2%2B55x-450=0\"
\n" ); document.write( "SOlve that you get x=7 (rounded)
\n" ); document.write( "7+5=12
\n" ); document.write( "Hence, Simth travelled at 7mph and Jones travelled at 12mph.
\n" ); document.write( "Paul.
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