SOLUTION: Solve the problem. Write your solution. Maridel is 2 years older than Trisha. The sum of their ages is 20. Find their present ages.(5pts)

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Question 1176252: Solve the problem. Write your solution.
Maridel is 2 years older than Trisha. The sum of their ages is 20. Find their present ages.(5pts)
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

let Maridel's age be M and Trisha's age be T
if Maridel is 2+years older than Trisha, we have
M=T%2B2.......eq.1
if the sum of their ages is 20, we have
M%2BT=20.....eq.2....substitute M from eq.1
T%2B2%2BT=20
2T=20-2
2T=18
T=9

go to
M=T%2B2.......eq.1..substitute T
M=9%2B2
M=11


their present ages: Maridel is 11 years old and Trisha is 9 years old