document.write( "Question 627513: A horse can travel at the rate of 5miles per hour for the first two hours of the trip. After the first two hours the horse's speed drops to 3 miles per hour. How many hours will it take the horse to travel 20 miles? \n" ); document.write( "
Algebra.Com's Answer #395079 by ankor@dixie-net.com(22740)\"\" \"About 
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A horse can travel at the rate of 5miles per hour for the first two hours of the trip.
\n" ); document.write( "After the first two hours the horse's speed drops to 3 miles per hour.
\n" ); document.write( " How many hours will it take the horse to travel 20 miles?
\n" ); document.write( ":
\n" ); document.write( "let t = total time for the trip
\n" ); document.write( "then
\n" ); document.write( "(t-2) = time at 3 mph (1st two hrs were at 5 mph)
\n" ); document.write( ":
\n" ); document.write( "Write a distance equation: dist = speed * time
\n" ); document.write( ":
\n" ); document.write( "Dist at 5 mph + Dist at 3 mph = 20 miles
\n" ); document.write( "5(2) + 3(t-2) = 20
\n" ); document.write( "10 + 3t - 6 = 20
\n" ); document.write( "3t + 4 = 20
\n" ); document.write( "3t = 20-4
\n" ); document.write( "3t = 16
\n" ); document.write( "t = 16/3
\n" ); document.write( "t = 5\"1%2F3\" hrs for the trip
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check this
\n" ); document.write( "5(2) + 3(3.333) = 20 mi \n" ); document.write( "
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