document.write( "Question 736707: A passenger train travels 392 miles in the same time it takes a freight train to travel 322 miles. The passenger train travels 20 miles per hour faster than the freight train. Find the rate of each. \n" ); document.write( "

Algebra.Com's Answer #449979 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+t+\"$ = time in hrs for both trains
\n" ); document.write( " $\"+392%2Ft+=+322%2Ft+%2B+20+\"$
\n" ); document.write( "Multiply both sides by $\"+t+\"$
\n" ); document.write( " $\"+392+=+322+%2B+20t+\"$
\n" ); document.write( " $\"+20t+=+70+\"$
\n" ); document.write( " $\"+t+=+3.5+\"$
\n" ); document.write( "-----------
\n" ); document.write( "The passenger train's rate:
\n" ); document.write( " $\"+392+%2F+3.5+=+112+\"$ mi/hr
\n" ); document.write( "Freight train's rate:
\n" ); document.write( " $\"+322+%2F+3.5+=+92+\"$ mi/hr\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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