document.write( "Question 504272: A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a winding road. The time spent on the winding road was 2 hours. Find the average speed on the level road if the entire trip was 285 miles. \n" ); document.write( "
Algebra.Com's Answer #339564 by ankor@dixie-net.com(22740)\"\" \"About 
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A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a winding road.
\n" ); document.write( "The time spent on the winding road was 2 hours.
\n" ); document.write( " Find the average speed on the level road if the entire trip was 285 miles.
\n" ); document.write( ":
\n" ); document.write( "Let s = av speed on the level road
\n" ); document.write( "then
\n" ); document.write( "(s-20) = av speed on the winding road
\n" ); document.write( ":
\n" ); document.write( "Write a dist equation: dist = speed * time
\n" ); document.write( ":
\n" ); document.write( "Lev Rd dist + winding Rd dist = 285 miles
\n" ); document.write( "3s + 2(s-20) = 285
\n" ); document.write( "3s + 2s - 40 = 285
\n" ); document.write( "5s = 285 + 40
\n" ); document.write( "5s = 325
\n" ); document.write( "s = 325/5
\n" ); document.write( "s = 65 mph on level roads
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check solution
\n" ); document.write( "3(65) + 2(65-20) =
\n" ); document.write( "195 + 90 = 285 \n" ); document.write( "
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