document.write( "Question 1134848: (1) Harold has twice as much money as Nadine. Nadine has 3 times as much money as Sandra. If together they have $357, how much money does each of them have? \n" ); document.write( "
Algebra.Com's Answer #752337 by ikleyn(52777)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " This problem can be solved in a very easy way, practically MENTALLY.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " You only need to choose the major unknown variable by a rational way.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "Let x be the money Sandra has (in dollars).\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Then Nadine has 3x dollars and Harold has 2*(3x) = 6x dollars.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Together, they have x + 3x + 6x = 10x dollars, and this amount is exactly 357 dollars.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Hence, x =\r \n" ); document.write( "\n" ); document.write( "-----------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Ideally, each problem you solve in school should teach you something.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Concretely, this given problem teaches you on how to choose the major unknown to make the solution easier.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |