document.write( "Question 678699: one car travels 20 mph faster than another. whie one of them travels at 240 miles the other travels 180 miles. find each of their speeds \n" ); document.write( "
Algebra.Com's Answer #421635 by ankor@dixie-net.com(22740)\"\" \"About 
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one car travels 20 mph faster than another.
\n" ); document.write( " while one of them travels at 240 miles the other travels 180 miles.
\n" ); document.write( " find each of their speeds
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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
\n" ); document.write( ":
\n" ); document.write( "write a time equation; time = dist/speed
\n" ); document.write( ":
\n" ); document.write( "\"240%2F%28%28s%2B20%29%29\" = \"180%2Fs\"
\n" ); document.write( "cross multiply
\n" ); document.write( "240s = 180(s+20)
\n" ); document.write( "240s = 180s + 3600
\n" ); document.write( "240s - 180s = 3600
\n" ); document.write( "60s = 3600
\n" ); document.write( "s = 3600/60
\n" ); document.write( "s = 60 mph the slower car
\n" ); document.write( ":
\n" ); document.write( "You can find the speed of the faster car, check to see if their times are equal\r
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