document.write( "Question 933158: A bus and car travel in opposite directioms. After 3 hours, they were 300miles apart. The car is traveling 15mph faster than the bus. How fast was the bus and car traveling?
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Algebra.Com's Answer #566655 by ptfile(81)![]() ![]() You can put this solution on YOUR website! Let 3hrs = the duration of the vehicles traveled \n" ); document.write( " x+15 = the car's speed \n" ); document.write( " x = the bus's speed \n" ); document.write( " 300mi= total distance covered\r \n" ); document.write( "\n" ); document.write( "A bus and car travel in opposite directions. After 3 hours, they were 300miles apart. The car is traveling 15mph faster than the bus. \n" ); document.write( "Distance = (rate)(time)\r \n" ); document.write( "\n" ); document.write( "(x+15)(3)+ (x)3 = 300 \n" ); document.write( " 3x+45 + 3x = 300 \n" ); document.write( " 6x = 255 \n" ); document.write( " x = 42.5\r \n" ); document.write( "\n" ); document.write( "Substitute x with 42.5 \n" ); document.write( "42.5+15 = 57.5\r \n" ); document.write( "\n" ); document.write( "The car's speed is 57.5mph while the bus's speed is 42.5mph.\r \n" ); document.write( "\n" ); document.write( "Check \n" ); document.write( "3 (57.5) + 3 (42.5) = 300 \n" ); document.write( " 172.5 + 127.5 = 300 \n" ); document.write( " 300 = 300 \n" ); document.write( " |