document.write( "Question 643805: A diesel train left Washington and traveled
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\n" ); document.write( "and traveled in the same direction but with
\n" ); document.write( "an average speed of 60 mph. Find the
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Algebra.Com's Answer #404631 by ankor@dixie-net.com(22740)\"\" \"About 
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A diesel train left Washington and traveled toward Johannesburg at an
\n" ); document.write( " average speed of 52 mph.
\n" ); document.write( " A cattle train left two hours later and traveled in the same direction
\n" ); document.write( " but with an average speed of 60 mph.
\n" ); document.write( " Find the number of hours the diesel train traveled before the cattle train
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\n" ); document.write( "Let t = travel time of the diesel train
\n" ); document.write( "then
\n" ); document.write( "(t-2) = travel time of the cattle train (Left 2 hrs later)
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\n" ); document.write( "When the cattle train catches the diesel, they will have traveled the
\n" ); document.write( " same distance. Write a distance equation. Dist = speed * time
\n" ); document.write( "52t = 60(t-2)
\n" ); document.write( "52t = 60t - 120
\n" ); document.write( "120 = 60t - 52t
\n" ); document.write( "120 = 8t
\n" ); document.write( "t = 120/8
\n" ); document.write( "t = 15 hrs
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\n" ); document.write( "Confirm this by finding the distance of each, should be equal
\n" ); document.write( "52(15) = 780 mi
\n" ); document.write( "60(13) = 780 mi also
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