Posted by **Amy~** on Sunday, September 19, 2010 at 10:27pm.

The final exam will count as two tests. Brooke has test scores of 80, 83, 71,61 and 95. What score does Brooke need on the final in order to have an 80?

I thought 80+83+71+61+95 = 390 / 5 = 78

then I don't know what to do next.

Although I did do 78 +2x = 85

and I get 3.5 and the answer is supposed to be 85.

I was wondering what would be the equation?

## Answer This Question

## Related Questions

- Math - Going into the final exam which will count as two-thirds of the final ...
- math - In your biology class, your final grade is based on several things: a lab...
- Statistics - In your biology class, your final grade is based on several things...
- Statistics - In your biology class, your final grade is based on several things...
- Algebra - Before the final exam, a student has test scores of 72, 80, 65, 78, ...
- Statistics - In Professor Smith's statistics course, the correlation between ...
- math - A professor grades students on three tests, four quizzes, and a final ...
- math - A professor grades students on three tests, four quizzes, and a final ...
- Stastistics - A linear regression line y = 0.8x-10 is computed to predict the ...
- math - Suppose that you are taking a course that has three exams which count for...

More Related Questions