document.write( "Question 905890: I am having trouble figuring out how to set up this problem. Thank you in advance to anyone who helps!
\n" ); document.write( "Addison is 3 times as old as Bailey and Bailey is 2.5 times as old as Christopher. If the sum off all of their ages is 66, how old is Christopher?
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Algebra.Com's Answer #549481 by ewatrrr(24785)\"\" \"About 
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x Christopher's age
\n" ); document.write( "Addison + Bailey + Christopher
\n" ); document.write( "3(2.5x) + (2.5x) + x = 66
\n" ); document.write( "7.5x + 2.5x + x = 66
\n" ); document.write( "11x = 66
\n" ); document.write( "x = 6, Christopher's age, Bailey is 15 and Addison is 45
\n" ); document.write( "And...
\n" ); document.write( "sum = 66
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