document.write( "Question 1142304: If I can buy a 12 pack of seltzer for $11 and I have $46 on me, how many packs of seltzer can I buy?\r
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document.write( "My work: I made this a proportion: 12/$11 = x/$46 is this proportion accurate? When I did that I made another proportio: 11x/11 = 552/11. This gave me about 50 packs of seltzer. Is this right? \n" );
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Algebra.Com's Answer #763015 by Theo(13342)![]() ![]() You can put this solution on YOUR website! you can buy one 12 pack of seltzer for 11 dollars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "how many 12 packs can you buy with 46 dollars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if you divide 46 by 11, you will get 4 twelve packs with some money left over.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4 * 11 = 44 dollars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your money left over will be 2 dollars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you used a ratio of 12/11 = x/46.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you should have cross multiplied to get 12 * 46 = 11 * x.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you should then have solved for x to get x = 12 * 46 / 11 = 50.1818181818.....\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "this tells you that you could buy 50 bottles for 46 dollars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "but, that doesn't answer the question.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the question was how many 12 packs could you buy.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "divide 50 by 12 to get 4 and a fraction.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that says that you could buy 4 twelve packs for 46 dollars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if you were going to use a ration, the ratio should have been:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "1 / 11 = x / 46.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you would then cross multiply to get 46 = 11 * x.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you would then solve for x to get x = 46 / 11 = 4 and a fraction.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you could buy 4 12 packs with 46 dollars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4 * 11 = 44 dollars.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you have 2 dollars left over from the 46.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you do not have 50 packs of seltzer.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you have 4 twelve packs of seltzer.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that's a total of 48 bottles of seltzer, but they don't want to know that.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "they want to know how many twelve packs.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the answer is 4.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your ratio was correct, but you were solving for the wrong variable.\\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your variable represented bottles of seltzer.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "they wanted twelve packs of seltzer.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |