document.write( "Question 164399: a bus is traveling at 50 mph then reduces its speed to 40 mph. the 220 mi. trip takes 5 hrs. how long does it travel at each speed? show equation. \n" ); document.write( "
Algebra.Com's Answer #121092 by midwood_trail(310)\"\" \"About 
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A bus is traveling at 50 mph then reduces its speed to 40 mph. The 220 mile trip takes 5 hrs. How long does it travel at each speed? Show equation.\r
\n" ); document.write( "\n" ); document.write( "Let D = distance\r
\n" ); document.write( "\n" ); document.write( "Let r = rate = speed\r
\n" ); document.write( "\n" ); document.write( "Let t = time (in hours)\r
\n" ); document.write( "\n" ); document.write( "rt = D\r
\n" ); document.write( "\n" ); document.write( "Bus going at 50mph\r
\n" ); document.write( "\n" ); document.write( "50t = 220....This is the equation for the bus going at 50 mph.\r
\n" ); document.write( "\n" ); document.write( "To find the time for this first case, divide both sides by 50.\r
\n" ); document.write( "\n" ); document.write( "t = 220/50\r
\n" ); document.write( "\n" ); document.write( "t = 4.4 hours\r
\n" ); document.write( "\n" ); document.write( "If the travels at 50 mph, it will take the bus 4.4 hours to reach 220 miles.\r
\n" ); document.write( "\n" ); document.write( "===============================================================\r
\n" ); document.write( "\n" ); document.write( "For bus going at 40mph:\r
\n" ); document.write( "\n" ); document.write( "rt = D\r
\n" ); document.write( "\n" ); document.write( "40t = 220....This is the equation for the bus going at 40 mph.\r
\n" ); document.write( "\n" ); document.write( "Divide both sides by 40 to find the time it takes the bus to reach 220 miles at 40 miles per hour.\r
\n" ); document.write( "\n" ); document.write( "t = 220/40\r
\n" ); document.write( "\n" ); document.write( "t = 5.5 hours\r
\n" ); document.write( "\n" ); document.write( "Is this clear?\r
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