document.write( "Question 631836: two cars start from two towns 400 miles apart and travel towards each other. they pass each other after 4 hours. find the speed of each if the difference between their speeds is 20 miles per hour \n" ); document.write( "

Algebra.Com's Answer #397911 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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two cars start from two towns 400 miles apart and travel towards each other.
\n" ); document.write( " they pass each other after 4 hours.
\n" ); document.write( " find the speed of each if the difference between their speeds is 20 miles per hour
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\n" ); document.write( "Let s = speed of the slower car
\n" ); document.write( "then
\n" ); document.write( "(s+20) = speed of the faster car
\n" ); document.write( ":
\n" ); document.write( "When they meet, they will have traveled a total of 400 mi
\n" ); document.write( ":
\n" ); document.write( "Write distance equation
\n" ); document.write( ":
\n" ); document.write( "slow car d + fast car d = 400 mi
\n" ); document.write( "4s + 4(s+20) = 400
\n" ); document.write( "solve for s \n" ); document.write( "

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