It’s A because 3 8’s are 24 but it’s not a mulitiple of 12
Answer:
Statisticians use z-scores to divide the area under a curve the way people use a knife to cut pizza.
Step-by-step explanation:
Statisticians use z-scores to divide the area under a curve the way people use a knife to cut pizza.
z-score:
- A z-score is a numerical measurement which is measured in terms of standard deviations from the mean.
- Formula:

- If a z-score is 0, it tells that the data point is same as the mean.
- Area under the normal curve is 1.
15x = 5y divide by 3, 3x=y. I believe
3x=4y
x+y=21
x = 21-y
3(21-y)=4y
63-3y=4y
63=7y
y=9
x+y=21
x+9=21
x=12
answer is (12, 9)
How many 1 3/4 inches are there in 35 inches?
Or in math talk:
35" ÷ 1 3/4
The answer is that 20 books will fit on the shelf.
I used a calculator and used 1.75 instead of 1 3/4