80, divide 200 by 2.5 and you get 80. Check by multiplying 2.5 and 80, which equals 200
Answer:
Step-by-step explanation:
I believe it's 9 to the west
Answer: 60.
Step-by-step explanation: After you divide you get 60.037037. And since were rounding its 60.
Answer:
The mean of the combined math and verbal scores is 1100, while the standard deviation is 141.
Step-by-step explanation:
Normal variables
Normal variables have mean
and standard deviation 
When we add normal variables, the combined mean is the sum of both means, and the standard deviation is the square root of the sum of both variances. The distribution is still normal.
In this question:
Verbal:
.
Math: 
Combined:


The mean of the combined math and verbal scores is 1100, while the standard deviation is 141.