document.write( "Question 1078945: two trains leave the station at the same time, one heading west and the other east. The westbound train travels 85 mi per hour. The eastbound trains at 75 mi per hour. how long will it take for the two trains to b 224 mi apart?
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Algebra.Com's Answer #693324 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
You can think of this as one of the trains standing still
\n" ); document.write( "and the other one traveling at the sum of their speeds
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\n" ); document.write( "Let $\"+t+\"$ = time in hrs for them to be 224 mi apart
\n" ); document.write( " $\"+224+=+%28+85+%2B+75+%29%2At+\"$
\n" ); document.write( " $\"+224+=+160t+\"$
\n" ); document.write( " $\"+t+=+1.4+\"$ hrs
\n" ); document.write( "( you can convert hrs to min )
\n" ); document.write( " $\"+.4%2A60+=+24+\"$ min
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\n" ); document.write( "It will take them 1 hr and 24 min to be 224 mi apart
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\n" ); document.write( "check:
\n" ); document.write( " $\"+d%5B1%5D+=+85%2At+\"$
\n" ); document.write( " $\"+d%5B1%5D+=+85%2A1.4+\"$
\n" ); document.write( " $\"+d%5B1%5D+=+119+\"$ mi
\n" ); document.write( "and
\n" ); document.write( " $\"+d%5B2%5D+=+75%2At+\"$
\n" ); document.write( " $\"+d%5B2%5D+=+75%2A1.4+\"$
\n" ); document.write( " $\"+d%5B2%5D+=+105+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+d%5B1%5D+%2B+d%5B2%5D+=+119+%2B+105+\"$
\n" ); document.write( " $\"+d%5B1%5D+%2B+d%5B2%5D+=+224+\"$
\n" ); document.write( "OK\r
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