document.write( "Question 549111: Two cars leave from the same point, headed in opposite directions, Car A is traveling 50 mph and Car B is traveling at 60 mph. How many hours will the two cars be 440 miles apart?
\n" ); document.write( "I know the answer is 4 hours but I do not know HOW. What is the formula? \n" ); document.write( "

Algebra.Com's Answer #357499 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
you can think of this as one car standing still and the other
\n" ); document.write( "driving away at the sum of their speeds
\n" ); document.write( "Let $\"t\"$ = time when they are $\"+440+\"$ mi apart
\n" ); document.write( " $\"+440+=+%28+50+%2B+60+%29%2At+\"$
\n" ); document.write( " $\"+t+=+440+%2F+110+\"$
\n" ); document.write( " $\"+t+=+4+\"$
\n" ); document.write( "They will be 440 mi apart in 4 hrs \n" ); document.write( "

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