SOLUTION: Macy Sydney and Eli are sisters Macy is two years older than Sydney and Ally is one year less than half the age of Sydney if the sum of their ages is 31 how old is Macy

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Macy Sydney and Eli are sisters Macy is two years older than Sydney and Ally is one year less than half the age of Sydney if the sum of their ages is 31 how old is Macy      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 1145752: Macy Sydney and Eli are sisters Macy is two years older than Sydney and Ally is one year less than half the age of Sydney if the sum of their ages is 31 how old is Macy
Answer by greenestamps(13198) About Me  (Show Source):
You can put this solution on YOUR website!


Sydney = x
Macy = x+2 [2 years older than Sydney]
Ally = (1/2)x-1 [1 year less than half Sydney's age]

Write and solve the equation that says the sum of their ages is 31:

%28x%29%2B%28x%2B2%29%2B%28%281%2F2%29x-1%29+=+31

Solve using basic algebra.