Posted by **Mariah** on Thursday, September 16, 2010 at 9:26am.

Juan is 8 years older than his sister Rosa.One day, Juan tells Rosa he is twice her age, but will only be twice her age for one year.To figure out the ages of Juan and Rosa you must first identify the variables. What are the variables in this problem?

- Algebra -
**MathMate**, Thursday, September 16, 2010 at 9:40am
The variables are the unknowns in the story.

Do you know the age of Juan, of Rosa?

- Algebra -
**Henry**, Friday, September 17, 2010 at 2:56pm
X = Rosa age

X + 8 = 2x = Juan age

x + 8 = 2x

x = 8 = Rosa age

2 * x = 2 * 8 = 16 = Juan age.

## Answer This Question

## Related Questions

- algebra - juan is 8 years than his sister rosa. one day, he tells rosa that he ...
- ALG 2! plz help urgent!! - Karen is 13 years older than Juan. The sum of their ...
- Math - Cindy is four years older than twice Mark's age. Juan is half as old as ...
- math - Juan's father is 4 times as old as Juan.Twenty-two years from now he will...
- algebra - Ulani has an older siste and a younger sister. Her older sister is one...
- algebra - Kelly is nine years older than her sister. Kelly's age is one more ...
- Math - Ricardo is 4 years older than his sister rosa,if their ages are added ...
- Math - When Juan divides each of five consecutive integers by his age , the sum ...
- literature - Which of the following is not information we learn about Don Juan ...
- Business Law - Juan thinks he would like to purchase Tara's house, but doesn't ...

More Related Questions