Register
The mean of a set of four test scores is 79. If three test scores are 77, 79, and 85, what is the fourth test score? a. 83 b. 81 c. 79 d. 75
192k views
4 votes
The mean of a set of four test scores is 79. If three test scores are 77, 79, and 85, what is the fourth test score?

a. 83
b. 81
c. 79
d. 75

User BlueWanderer
by
7.6k points

1 Answer

3 votes
The answer would be D. 75
77+79+85+x=241

Let's see what 83+241=324/4=81 A is out.

81+241=322/4= 80.5 so B is out.

79+241=320/4=80 so C is out.

241+75=316/4 which is 79 is the correct answer.
User Piers C
by
7.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!