document.write( "Question 1026096: two cars are traveling and leave in opposite directions at the same time. One car is traveling 20 mph faster than the other car. After 6 hours they are 780 miles apart. what is the speed of the two cars?\r
\n" ); document.write( "\n" ); document.write( "I have tried to divide 780 by 6 then subtract 20 to find the speed, but im not sure that's how you are supposed to solve this question. \n" ); document.write( "
Algebra.Com's Answer #641355 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
car I x mph
\n" ); document.write( "car ii x+ 20 km/h
\n" ); document.write( "..
\n" ); document.write( "They are moving towards each other
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\n" ); document.write( "So add up their speed.
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\n" ); document.write( "combined speed = x+ 1 x 20
\n" ); document.write( "( 2 x + 20 )
\n" ); document.write( "Time = 6 hours
\n" ); document.write( "Distance = 780 miles
\n" ); document.write( "Distance = speed * time
\n" ); document.write( "( 2 x 20 )* 6 = 780
\n" ); document.write( "12.00 x + 120 = 780
\n" ); document.write( "12 x = 780 + -120
\n" ); document.write( "12 x = 660
\n" ); document.write( "/ 12
\n" ); document.write( "x= 55 mph
\n" ); document.write( "car I = 55 mph
\n" ); document.write( "car ii 55 + 20 = 75 km/h
\n" ); document.write( "m.ananth@hotmail.ca
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