Answer:
(4,-10)
Step-by-step explanation:
Answer:
The mean temperature is 31.
Step-by-step explanation:
The formula for the z-sore is
x - mean
z = ----------------------
(std dev)
In this case let's multiply both sides by (std dev), obtaining:
x - mean = z*(std dev).
Solving for (mean), we get
mean = x - z*(std dev)
Substituing 37 for x, 2.4 for z and 2.5 for (std dev), we get:
mean = 37 - (2.4)(2.5) = 31
The mean temperature is 31.
Answer:
I believe 0.75 is the answer. Here is my work:
Step-by-step explanation:
1. 250 divided by 5 = 50 (this is to get 1/5 of 250)
2. 250 divided by 2 (because 1/2 is equivalent to 50% of the overall number) = 125
3. 50 + 125 = 175
4. 250-175 = 75
5. 75 can be converted to 0.75 as a decimal by moving 2 digits over.
Therefore, out of the 250 seventh grade students, 0.75 are in other electives.
Also, I'm in 7th grade so this is my work, I'm sure there are other ways of solving this, too. Please do not add this answer if you don't believe I'm right.
Thanks for your time, and have a nice day! : )
Answer: 0.75
Answer: b
Step-by-step explanation:
Answer:
The correct answer is $5,29
Step-by-step explanation:
The unit price helps us determine the price for a single unit of something that has been purchased in a group.
In this case we have a package of 5 pairs of insulated gloves, which includes 5 pairs and costs 29.45.
We want to know what the unit price is, that is, how much does a single pair of gloves cost.
To determine this we simply divide the total price by the number of gloves:
29.45 / 5 = 5.29
In this way we can confirm that the unit price of a pair of insulated gloves is $ 5.29.