document.write( "Question 1059932: A train traveling at the rate of 90 miles per hour (mi/hr) leaved New York City. Two hours later, another train traveling at the rate of 120 mi/hr also leaves New York City on a parallel track. How long will it take the faster train to catch up to the slower train? \n" ); document.write( "

Algebra.Com's Answer #674969 by stanbon(75887) $\"\"$ $\"About$

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A train traveling at the rate of 90 miles per hour (mi/hr) left New York City. Two hours later, another train traveling at the rate of 120 mi/hr also leaves New York City on a parallel track. How long will it take the faster train to catch up to the slower train?
\n" ); document.write( "--------------------
\n" ); document.write( "Slower train DATA:
\n" ); document.write( "rate = 90 mph ; time = x hrs ; distance = 90x miles
\n" ); document.write( "-----
\n" ); document.write( "Faster train DATA:
\n" ); document.write( "rate = 120 mph ; time = x-2 ; distance = 120x - 240 miles
\n" ); document.write( "----------------------------
\n" ); document.write( "Equation:
\n" ); document.write( "dist = dist
\n" ); document.write( "90x = 120x - 240
\n" ); document.write( "----------
\n" ); document.write( "-30x = -240
\n" ); document.write( "x = 8
\n" ); document.write( "-----
\n" ); document.write( "Ans: x-2 = 6 hrs
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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