document.write( "Question 637307: Hi,\r
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document.write( "Am trying to help my autistic boy and unfortunately am not very good with math. He has a Age Word Problem as below:\r
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document.write( "Bill and Ben are brothers the sum of their ages is equal to 4 times Bob's age who is half as old as Bridget. The average age of the 4 children is 8. Write this as an equation, then solve it. \r
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document.write( "I tried to work out the equations and came out with something as below:\r
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document.write( "A=Bill's age
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document.write( "B=Ben's age
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document.write( "C=Bob's age
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document.write( "D=Bridget's age\r
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document.write( "A + B = 4C
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document.write( "D = 2C
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document.write( "A + B + C + D = 32\r
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document.write( "When I tried to work out the values, am not coming up with a whole number as the answer. Also am getting an invalid age value for A and B as well. What am I doing wrong? \r
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document.write( "Any advice will be much appreciated. Thanks in advance.
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Algebra.Com's Answer #401611 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Bill and Ben are brothers the sum of their ages is equal to 4 times Bob's age who is half as old as Bridget. The average age of the 4 children is 8. Write this as an equation, then solve it. \r \n" ); document.write( "\n" ); document.write( "I tried to work out the equations and came out with something as below:\r \n" ); document.write( "\n" ); document.write( "A=Bill's age \n" ); document.write( "B=Ben's age \n" ); document.write( "C=Bob's age \n" ); document.write( "D=Bridget's age\r \n" ); document.write( "\n" ); document.write( "A + B = 4C \n" ); document.write( "D = 2C \n" ); document.write( "A + B + C + D = 32\r \n" ); document.write( "\n" ); document.write( "When I tried to work out the values, am not coming up with a whole number as the answer. Also am getting an invalid age value for A and B as well. What am I doing wrong? \n" ); document.write( "--------------- \n" ); document.write( "A + B + C + D = 32 \n" ); document.write( "4C + C + 2C = 32 \n" ); document.write( "C = 32/7 \n" ); document.write( "------- \n" ); document.write( "D = 64/7 \n" ); document.write( "----- \n" ); document.write( "A + B = 128/7 \n" ); document.write( "A & B cannot be determined with the data given, only the sum. \n" ); document.write( "----------------- \n" ); document.write( "You would expect integer solutions, but they're not. \n" ); document.write( "Maybe a typo somewhere. \n" ); document.write( " \n" ); document.write( " |