SOLUTION: Tony is half as old as Andrew. Cindy is 2 years younger than twice Andrew's age. If the sum of Tony, Andrew, and Cindy's ages is 78, how old is Cindy?
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Question 577877: Tony is half as old as Andrew. Cindy is 2 years younger than twice Andrew's age. If the sum of Tony, Andrew, and Cindy's ages is 78, how old is Cindy? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! t=a/2
c=2a-2
t+a+c=78
a/2+a+2a-2=78
a/2+3a-2=78
a/2+3a=80
a+6a=160
7a=160
a=160/7
t=80/7
c=2*160/7-2
c=320/7-14/7
c=306/7
