document.write( "Question 626102: The question is......Two jets leave at the same time,one is flying eat, the other west. the speed of the jet that is flying west is 75km/h faster than the speed of the jet flying east. in 3 hr they are 3075km apart. let w represent the speed of the plane travelling west and e represent the speed of plane travelling east. you need to know the speed of each plane. write a system of equation to model this situation \n" ); document.write( "
Algebra.Com's Answer #854262 by MathTherapy(10810)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "The question is......Two jets leave at the same time,one is flying eat, the other west. the speed of the jet that is flying\r\n" );
document.write( "west is 75km/h faster than the speed of the jet flying east. in 3 hr they are 3075km apart. let w represent the speed of the\r\n" );
document.write( "plane travelling west and e represent the speed of plane travelling east. you need to know the speed of each plane. write a\r\n" );
document.write( "system of equation to model this situation\r\n" );
document.write( "******************************************\r\n" );
document.write( "The other \"PERSON\" totally ignored the given instructions, regarding the assigned variables. It/He/She even came up with a solution,\r\n" );
document.write( "although one wasn't requested. \r\n" );
document.write( "\r\n" );
document.write( "As requested, speeds of westbound and eastbound jets are w, and e, respectively\r\n" );
document.write( "Since the westbound jet is travelling 75 km/h faster than the eastbound, we get the following SPEED equation: w = e + 75 ---- eq (i)\r\n" );
document.write( "\r\n" );
document.write( "Also, it takes the jets 3 hrs to be 3,075 km apart, at which time, the westbound had travelled \"3w\" km, and the eastbound, \"3e\" km,\r\n" );
document.write( "resulting in the following DISTANCE equation: 3w + 3e = 3,075\r\n" );
document.write( "                                                                               3(w + e) = 3(1,025)\r\n" );
document.write( "                                                                                    w + e = 1,025 --- eq (ii)\r\n" );
document.write( "                                                                                           w = e + 75 -- eq (i)\r\n" );
document.write( "\r\n" );
document.write( "The above 2-system equation can be easily solved using SUBSTITUTION.\r\n" );
document.write( "It can also be solved using ELIMINATION, but written as follows: w - e = 75 ----- eq (i)\r\n" );
document.write( "                                                                                                               w + e = 1,025 -- eq (ii)\r\n" );
document.write( "         \r\n" );
document.write( "That's IT!. That's ALL that's needed.
\n" ); document.write( "
\n" );