document.write( "Question 1095211: Car A and Car B are 456 miles apart and are travelling towards each other at the rates of 42 miles per hour and 34 miles per hour,respectively. In how many hours will they meet? \n" ); document.write( "

Algebra.Com's Answer #709763 by josmiceli(19441) $\"\"$ $\"About$

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Since their speeds will add, you can think
\n" ); document.write( "of this as one of them standing still and
\n" ); document.write( "the other moving at the sum of their speeds
\n" ); document.write( "Let $\"+t+\"$ = time in hrs until they meet
\n" ); document.write( "-----------------------------------------
\n" ); document.write( " $\"+456+=+%28+42+%2B+34+%29%2At+\"$
\n" ); document.write( " $\"+456+=+76t+\"$
\n" ); document.write( " $\"+t+=+6+\"$
\n" ); document.write( "They meet in 6 hrs
\n" ); document.write( "--------------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+d%5B1%5D+=+42t+\"$
\n" ); document.write( " $\"+d%5B2%5D+=+34t+\"$
\n" ); document.write( " $\"+d%5B1%5D+%2B+d%5B2%5D+=+42t+%2B+34t+\"$
\n" ); document.write( " $\"+d%5B1%5D+%2B+d%5B2%5D+=+76t+\"$
\n" ); document.write( " $\"+d%5B1%5D+%2B+d%5B2%5D+=+456+\"$ mi
\n" ); document.write( "OK \n" ); document.write( "

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