document.write( "Question 874985: points a and b are 60 km. a part on a highway. a car starts from a and another car starts from b simultaneously. if they travel in the same direction ,they meet in 7 hours , but if they travel towards each other they meet in one hour. find the speed of two \n" ); document.write( "
Algebra.Com's Answer #527948 by lwsshak3(11628)\"\" \"About 
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points a and b are 60 km. a part on a highway. a car starts from a and another car starts from b simultaneously. if they travel in the same direction ,they meet in 7 hours , but if they travel towards each other they meet in one hour. find the speed of two
\n" ); document.write( "***
\n" ); document.write( "let x=speed of faster car
\n" ); document.write( "let y=speed of slower car
\n" ); document.write( "travel time=distance/speed
\n" ); document.write( "..
\n" ); document.write( "60/(x+y)=1(travel toward each other)
\n" ); document.write( "60/(x-y)=7(travel in same direction)
\n" ); document.write( "..
\n" ); document.write( "x+y=60
\n" ); document.write( "7x-7y=60
\n" ); document.write( "..
\n" ); document.write( "7x+7y=420
\n" ); document.write( "7x-7y=60
\n" ); document.write( "add
\n" ); document.write( "14x=480
\n" ); document.write( "x=34.28
\n" ); document.write( "y=60-x=25.72
\n" ); document.write( "speed of faster car≈34.28 mph
\n" ); document.write( "speed of slower car≈25.72 mph \n" ); document.write( "
\n" );