Posted by **Jacob** on Friday, April 15, 2011 at 12:46am.

Of the first graders who were asked, 1/6 like math best, 2/3 liked reading best, and 12 liked science best. How many were asked their favorite subject?

- Math -
**Jai**, Friday, April 15, 2011 at 1:02am
first we represent unknowns using variables,

let x = the number of students asked

then we set up the equation,, since the given were the fractional parts of the total number, we represent each part as

(1/6)x : the number of students who like math

(2/3)x : the number of students who like reading

thus,

(1/6)x + (2/3)x + 12 = x

(1/6)x + (4/6)x + 12 = x

(5/6)x + 12 = x

12 = x - (5/6)x

12 = (1/6)x

x = 72 students

hope this helps~ :)

## Answer this Question

## Related Questions

- Math - Of the first graders who were asked, 1/6 like math best, 2/3 liked ...
- math - Of the first graders who were asked, one sixth like math best, two thirds...
- 4 th grade Math - Of the first graders who were asked, 1/6 like math best, 2/3 ...
- math - Of the 1st graders who were asked, 1/6 like math best, 2/3 like reading ...
- 4th grade - Of the first graders who were asked,1/6 like math best,2/3 like ...
- 4th grade math - of the third graders who were asked, 2/5 like pizza the best, 3...
- 6th grade Math - Rafael asked 85 students what kind of pet they liked the most. ...
- math - at the animal show 3/4 liked the dogs best. 2/6 of them like the great ...
- MATH - David took a survey of 12 people to find out what their favorite animal ...
- math - according to a survey of 800 students, about 3/4 of them chose pizza as ...

More Related Questions