SOLUTION: The ages of Mary, Jo and Larry have a sum of 120. Mary's age is three times Jo's age and Larry's age is 5 less than Jo's age. Find the ages of Larry, Mary, and Jo.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: The ages of Mary, Jo and Larry have a sum of 120. Mary's age is three times Jo's age and Larry's age is 5 less than Jo's age. Find the ages of Larry, Mary, and Jo.       Log On


   

Question 1120028: The ages of Mary, Jo and Larry have a sum of 120. Mary's age is three times Jo's age and Larry's age is 5 less than Jo's age. Find the ages of Larry, Mary, and Jo.
Answer by solver91311(24713) About Me  (Show Source):
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Let represent Jo's age. Then is Mary's age and is Larry's age.

The sum of their ages is 120 so:



Solve for then calculate and


John

My calculator said it, I believe it, that settles it