document.write( "Question 1181288: Garrett's coin bank contains 500 nickels, dimes, and quarters. He has the same number of nickels as dimes and a total value of $72.50. How many quarters does he have? \n" ); document.write( "
Algebra.Com's Answer #811158 by ikleyn(52908) You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "x nickels\r\n" ); document.write( "\r\n" ); document.write( "x dimes\r\n" ); document.write( "\r\n" ); document.write( "and the rest (500-2x) coins are quarters.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Keeping it in mind, you write the total money equation\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 5x + 10x + 25(500-2x) = 7250 cents.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Simplify and find x\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 5x + 10x - 50x + 25*500 = 7250\r\n" ); document.write( "\r\n" ); document.write( " 25*500 - 7250 = 50x - 5x - 10x\r\n" ); document.write( "\r\n" ); document.write( " 52500 = 35x\r\n" ); document.write( "\r\n" ); document.write( " x =\r \n" ); document.write( "\n" ); document.write( "Solved (using one equation for one single unknown, ONLY).\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |