SOLUTION: The total of three sisters' ages is 39. Dina is half as old as Michelle and 3 years younger than Juliette. How old are the sisters?
Algebra.Com
Question 549428: The total of three sisters' ages is 39. Dina is half as old as Michelle and 3 years younger than Juliette. How old are the sisters?
Answer by TutorDelphia(193) (Show Source): You can put this solution on YOUR website!
Assign variables based on their names.
We know that:
d+m+j=39
We also know that
d=1/2m
and
d=j-3
We can find from that that
m=2d
and
j=d+3
Lets sub those in
d+2d+d+3=39
4d+3=39
4d=36
d=9
therefor j=12 and m=18
RELATED QUESTIONS
The total of three sisters' ages is 39. Dina is half as old as Michelle and 3 years... (answered by stanbon,lynnlo)
the total of three sisters' ages is 39. Dina is half as old as Michelle and 3 years... (answered by josgarithmetic)
the total of three sisters ages is 39. Dina is half as old as Michelle and 3 years... (answered by ankor@dixie-net.com,josgarithmetic,MathTherapy)
The total of three sister's ages is 39. Dina is half as old as Michelle and 3 years... (answered by stanbon)
the total of three sister's age is 39. Dina is half as old as Michelle and three years... (answered by JulietG)
The sum of three sisters ages is 39.
Dina is half as old as michelle and three years... (answered by multiplier)
the total of three sisters' ages is 47. Jessica is half as old as Sydney and 3 years... (answered by josmiceli)
Tony is four times as old as Janet and half as old as Bill. The sum of three ages is 39... (answered by fractalier)
Write as an equation: Alice, Barbara, and Carol are sisters. Alice is 3 years younger... (answered by Boreal)