Answer:
A 7 and 5 differences are 4 and -2
b) 4, K
c)-2
d) no depends on K
I have no answer for the second part yet
Step-by-step explanation:
I think it will look like this
Answer:
5
Therefore, she must get 5 points from the last quiz to have a mean score of 4
Step-by-step explanation:
Mean is the average of a set of data, it is the sum of the data divided by the number of data.
To have a mean of 4 from 4 quizzes;
Let x represent the total;
mean = x/4
4 = x/4
x = 4 × 4 = 16
To have a mean of 4 he must have a total score of 16.
Let y represent her score in the last quiz;
16 = 4+3+4+y
16 = 11+y
y = 16-11 = 5
Therefore, she must get 5 points from the last quiz to have a mean score of 4
X = 10. 14 x 2 = 28. 5 x 2 = x
Answer:
56
Step-by-step explanation:
The picture shows you the step-by-step instructions.
