document.write( "Question 907960: Linda leaves Boise to travel the 2160 miles to Austin, driving a a speed of 55 mph. Mark leaves Austin driving the same 2160 mile route to Boise at 65 mph. How many miles will Mark have traveled when they meet? \n" ); document.write( "

Algebra.Com's Answer #550727 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
You can think of this as
\n" ); document.write( "one of them standing still and
\n" ); document.write( "the other traveling at the sum of their speeds
\n" ); document.write( "---------------------------------
\n" ); document.write( "Let $\"+t+\"$ = The time in hrs until they meet
\n" ); document.write( " $\"+2160+=+%28+55+%2B+65+%29%2At+\"$
\n" ); document.write( " $\"+t+=+2160+%2F+120+\"$
\n" ); document.write( " $\"+t+=+18+\"$ hrs
\n" ); document.write( "-------------
\n" ); document.write( "Let $\"+d%5B1%5D+\"$ = distance Mark travels
\n" ); document.write( " $\"+d%5B1%5D+=+65t+\"$
\n" ); document.write( " $\"+d%5B1%5D+=+65%2A18+\"$
\n" ); document.write( " $\"+d%5B1%5D+=+1170+\"$
\n" ); document.write( "Mark travels 1170 mi
\n" ); document.write( "--------------------
\n" ); document.write( "check:
\n" ); document.write( "Linda travels:
\n" ); document.write( " $\"+d%5B2%5D+=+55t+\"$
\n" ); document.write( " $\"+d%5B2%5D+=+55%2A18+\"$
\n" ); document.write( " $\"+d%5B2%5D+=+990+\"$ mi
\n" ); document.write( "and
\n" ); document.write( " $\"+d%5B1%5D+%2B+d%5B2%5D+=+1170+%2B+990+\"$
\n" ); document.write( " $\"+d%5B1%5D+%2B+d%5B2%5D+=+2160+\"$
\n" ); document.write( "OK\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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