Friday

October 24, 2014

October 24, 2014

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

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?

- Math -
**TutorCat**, Sunday, September 19, 2010 at 11:47pmtreat them as two scores and calculate the mean:

(80+83+71+61+95+x+x)/7 = 80

**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 ...

working with data - josephs final averages in science class are shown in the ...

Algebra - Answer to david has scores of 79, 96, 63, 54 on his algebra tests. Use...