document.write( "Question 226303: I'm trying to help my daughter with algerbra and I'm lost too! Here is the problem:
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document.write( "A group of ten 6 and 12 volt batteries are wired together. The sum of their voltages is 84 volts. How many of each type of battery are used?\r
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document.write( "I can get to the answer through process of elimination, but do not know how to set up the problem correctly. Can you help?
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document.write( "Mom \n" );
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Algebra.Com's Answer #168556 by scott8148(6628) You can put this solution on YOUR website! if b=\"number of 6v\", then 10-b=\"number of 12v\"\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6(b) + 12(10 - b) = 84\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "distributing ___ 6b + 120 - 12b = 84 ___ -6b = -36 ___ b = 6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "six 6v and four 12v \n" ); document.write( " |