Solving this problem is pretty straight forward.
We simply use the formula:
z-score = (x – u) / s
where,
x = sample value = 48 minutes
u = mean value = 30 minutes
s = standard deviation = 7 minutes
Therefore,
z-score = (48 minutes – 30 minutes) / 7 minutes
<span>z-score = 2.57</span>
Answer:
The sum of all four integers is 60.
Step-by-step explanation:
Let the integers be x, x + 2, x + 4, and x + 6.
x + x + 6 = 30
2x = 24
x = 12
So x + x + 2 + x + 4 + x + 6 = 4x + 12 = 60
Answer:
n=12
Step-by-step explanation:
I'm assuming you want to solve for <em>n</em>
First, you must use distributive property:
-30=-2n-6
Then, add 6 to both sides
-24=-2n
Finally, you must divide by -2
12=n
Answer:
im not sure, i will try to figure it out for you
Step-by-step explanation:
Answer:
y = 5/3x + 31/3
=
5
3
x
+
31
3
Step-by-step explanation:
