document.write( "Question 520084: how long will it take a passenger train traveling at 60mph to catch up to a fright train trarveling at 45mph if the freight train had an 90minn head start \n" ); document.write( "

Algebra.Com's Answer #345923 by nerdybill(7384) $\"\"$ $\"About$

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how long will it take a passenger train traveling at 60mph to catch up to a fright train trarveling at 45mph if the freight train had an 90minn head start
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\n" ); document.write( "first, convert 90 minutes to hours:
\n" ); document.write( "90/60 = 1.5 hours
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\n" ); document.write( "then applying the distance formula:
\n" ); document.write( "Let t = time (hours) for passenger train to catch up
\n" ); document.write( "then
\n" ); document.write( "60t = 45(t+1.5)
\n" ); document.write( "60t = 45t+67.5
\n" ); document.write( "15t = 67.5
\n" ); document.write( "t = 4.5 hours
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