document.write( "Question 1011698: ) Kristen is four times as old as Claire. Emily is six years older than Claire and 6 years younger than Sam. Anna is twice as old as Claire. If the sum of their ages is 81, how old is each person? \n" ); document.write( "

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) Kristen is four times as old as Claire. Emily is six years older than Claire and 6 years younger than Sam. Anna is twice as old as Claire. If the sum of their ages is 81, how old is each person?
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Let Claire’s age be C
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document.write( "Then Kristen’s is: 4C
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document.write( "Emily’s is:        C + 6
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document.write( "Sam’s is:          C + 6 + 6, or C + 12 (Sam is 6 years older than Emily)
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document.write( "Anna’s is:         2C
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document.write( "We then get: C + 4C + C + 6 + C + 12 + 2C = 81
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document.write( "9C + 18 = 81
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document.write( "9C = 81 – 18
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document.write( "9C = 63
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document.write( "C, or Claire’s is: , or 
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document.write( "You should be able to substitute C to find all other ages. \n" );
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