document.write( "Question 19037: If two planes leave the same airport at 1pm, how many miles apart will they be at 3pm if one travels north at 150 mph and the other travels directly west at 200 mph? \n" ); document.write( "
Algebra.Com's Answer #9160 by MelanieBCC(40)![]() ![]() ![]() You can put this solution on YOUR website! first, find how far each plane travelled... \n" ); document.write( "150 mph * 2 hours = 300 miles \n" ); document.write( "200 mph * 2 hours = 400 miles\r \n" ); document.write( "\n" ); document.write( "since one is traveling north and the other is travelling west, and you want to find the distance between them, look at it as a right triangle. If you do not understand why it is a triangle, draw it out on graph paper (make 1 square equal to 100 miles) where the airport is the origin, plane one is 3 squares up and plane 2 is 4 squares over.\r \n" ); document.write( "\n" ); document.write( "Pythagorean theorum says \n" ); document.write( "\n" ); document.write( "Therefore, \n" ); document.write( "\n" ); document.write( "calculating the exponents out leaves \n" ); document.write( "\n" ); document.write( "therefore, \n" ); document.write( "\n" ); document.write( "at 3pm, the planes will be 500 miles apart \n" ); document.write( " |