SOLUTION: Mary is twice as old as Hilda. Four years from now the sum of their ages will be 41. Find their present age. (side-note, I'm in grade 9 so my teacher expects me to use only ONE va

Question 1177877: Mary is twice as old as Hilda. Four years from now the sum of their ages will be 41. Find their present age.
(side-note, I'm in grade 9 so my teacher expects me to use only ONE variable)
Thank you!
Found 2 solutions by ankor@dixie-net.com, mananth:
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Mary is twice as old as Hilda.
let h = Hilda's age
then, since Mary is twice as old:
2h = Mary's age
Four years from now the sum of their ages will be 41.
(h+4) + (2h+4) = 41
h + 2h + 4 + 4 = 41
3h + 8 = 41
3h = 41 - 8
3h = 33
h = 33/3
h = 11 yrs old is Hilda's age
then
2*11 + 22 is Mary's age
:
:
Check their age total in 4 yrs
11 + 4 = 15
22 + 4 = 26
-----------
tot age 41

Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Mary is twice as old as Hilda. Four years from now the sum of their ages will be 41. Find their present age.

Let Hilda's age be x
Mary's age will be 2x
2x+4 +x+4 = 41
3x+8 =41
3x=41-8
3x =33
x=11
Hilda's age 11 years
Mary's age = 2x = 22 years

RELATED QUESTIONS
Five years from now Mary will be twice as old as her daughter Ashley. Currently the sum... (answered by ewatrrr)
At present Mary is 6 times as old as her daughter Susan. Four years from now she will be... (answered by ikleyn,math_tutor2020,MathTherapy)
What are their ages now. Pete is twice as old as Lashauna. In 5 years, the sum of their... (answered by stanbon)
The sum of Mary's age and Mark's age is 41 years. Five years from now the sum of their... (answered by solver91311)
Isa is twice as old as hamza. In five years the sum of their ages will be thirty-four.... (answered by ewatrrr)
Q1: Three years ago, Mark's age was 1 year more than thrice Aaron's. Four years from... (answered by stanbon)
The sum of the ages of Dorothy and Dorileen is 41. In 5 years, Dorothy will be twice as... (answered by ankor@dixie-net.com)
the sum of brads age and his fathers age is 58. in four years brads father will be twice... (answered by josmiceli)
Mary is now four times as old as her daughter. Four years ago,the product of their ages... (answered by mananth)