SOLUTION: a. Lily and Rosie are sisters. The sum of their ages is 19 and the positive difference of their age is 9. Set up a system of equations involving Lily's age, L, and Rosie's age, R
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Question 948323: a. Lily and Rosie are sisters. The sum of their ages is 19 and the positive difference of their age is 9. Set up a system of equations involving Lily's age, L, and Rosie's age, R, assuming Lily is the older child.
b. Solve the system to find their ages.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Add the two equations together,
So then,
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