SOLUTION: The sum of Mary's age and Mark's age is 41 years. Five years from now the sum of their ages will be three times Mary's present age. How old is Mary? This must be answer by the meth
Algebra.Com
Question 657540: The sum of Mary's age and Mark's age is 41 years. Five years from now the sum of their ages will be three times Mary's present age. How old is Mary? This must be answer by the method of elimination
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent Mark's current age and let 
represent Mary's current age. Five years from now Mark will be 
and Mary will be 
.
First put the second equation into standard form:
Using a multiplier of 2 on the first equation, solve the 2X2 system by elimination.
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
The sum of Victor’s and Ellen’s age is 40 years. Victor’s age 10 years from now will be 1 (answered by oberobic)
The sum of the ages of two sisters, Mary and Jane, is 24 years. Four years ago three... (answered by josgarithmetic,MathTherapy)
The sum of the ages of two sisters, Mary and Jane, is 24 years. Four years ago three... (answered by josgarithmetic)
The sum of the ages of two sisters, Mary and Jane, is 24 years. Four years ago three... (answered by ankor@dixie-net.com)
The sum of the ages of two sisters, Mary and Jane, is 24 years. Four years ago three... (answered by josgarithmetic)
The sum of Ellen’s and Todd’s ages is 34 years. Five years ago, the sum of twice... (answered by CubeyThePenguin,MathLover1)
Jaimie is 4 years younger than her brother. Five years from now, the sum of their ages... (answered by josgarithmetic)
Good day. May you please assist me in the following question:
The sum of the ages of... (answered by josgarithmetic,MathTherapy)
Five years from now, Jabin's grandmother will be 3 times as old as Jabin. The sum of the... (answered by josgarithmetic,ikleyn)
