document.write( "Question 1148948: Hi, I need help solving this word problem. Its seems we need to find two answers but not sure how to. \r
\n" );
document.write( "\n" );
document.write( "Word Problem; \"Two buses leave towns 610 km apart at the same time and travel toward each other. One bus travels 5 km per hour faster than the other. If they meet in 4 hours, what is the rate of each bus? (Label which speed is for which bus\"\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "Thank you
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #770286 by ikleyn(52787)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "Let x be the rate of the slower bus, in kilometers per hour.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Then the rate of the other bus is (x+5) kilometers per hour, according to the condition.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "In 4 hours, the slower bus traveled 4*x kilometers, while the faster bus traveled 4*(x+5) kilometers.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "In 4 hours, they meet each other, which means that the sum of the traveled distances is the total distance\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 4x + 4*(x+5) = 610 kilometers.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Thus you get your basic equation. Now your task is to solve it.\r\n" ); document.write( "For it, simplify the equation step by step.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 4x + 4x + 20 = 610\r\n" ); document.write( "\r\n" ); document.write( " 8x = 610 - 20\r\n" ); document.write( "\r\n" ); document.write( " 8x = 590\r\n" ); document.write( "\r\n" ); document.write( " x = 590/8 = 73.75 kilometers per hour.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Thus you found the rate of the slower bus.\r\n" ); document.write( "\r\n" ); document.write( "Then the rate of the faster bus is 73.75 + 5 = 78.75 km/h.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "CHECK. 4*73.75 + 4*78.75 = 610 kilometers. ! Precisely correct !\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "ANSWER. 73.75 km/h for the slower bus and 78.75 km/h for the faster bus.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-----------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "See introductory lessons on Travel and Distance problems\r \n" ); document.write( "\n" ); document.write( " - Travel and Distance problems \r \n" ); document.write( "\n" ); document.write( " - Travel and Distance problems for two bodies moving in opposite directions \r \n" ); document.write( "\n" ); document.write( " - Travel and Distance problems for two bodies moving in the same direction (catching up)\r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "They are written specially for you.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You will find the solutions of many similar problems there.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Read them and learn once and for all from these lessons on how to solve simple Travel and Distance problems.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Become an expert in this area.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "/\/\/\/\/\/\/\/\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You did it VERY REASONABLY by dividing your original post in two SEPARATE problems.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Never submit more than one problem per post to this forum.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Those who violate this rule, work AGAINST their own interests.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |