document.write( "Question 1157573: Two planes, which are 1580 miles apart, fly toward each other. Their speeds differ by 90mph. If they pass each other in 2 hours, what is the speed of each? \n" ); document.write( "
Algebra.Com's Answer #780442 by ikleyn(52798)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( " 2*x + 2*(x+90) = 1580 miles is the total distance.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "(x is the speed of the slower plane; \" 2 \" represents 2 hours).\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "From the equation, step by step\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 2x + 2x + 180 = 1580\r\n" ); document.write( "\r\n" ); document.write( " 4x = 1580 - 180 = 1400\r\n" ); document.write( "\r\n" ); document.write( " x = 1400/4 = 350 miles per hour is the speed of the slover,\r\n" ); document.write( "\r\n" ); document.write( " and 350 + 90 = 440 miles per hour is the speed of the faster.\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( " |