document.write( "Question 1072559: Grandma bought some candy. She gave each of her grandchildren 4 pieces of candy and had 2 pieces left. If she wanted to give each of them 5 pieces of candy, she would be 2 pieces short. How many grandchildren does she have?\r
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document.write( "I know that the answer is 5 but I can not come up with the right equation. I came up with an equation but it tell me that Grandma has 4 grandchildren -- which is wrong. Thank you. \n" );
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Algebra.Com's Answer #687417 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "Let n be that unknown number of grandchildren.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Then the number of cookies C = 4n +2, according to the first part of the condition.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "At the same time, C = 5n - 2, from the other part of the condition.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "It gives you an equation\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "4n + 2 = 5n -2,\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "which gives you the solution n = 4.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Answer. The number of grandchildren is 4.\r\n" ); document.write( "\r\n" ); document.write( " The number of cookies is 18.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |