<h2>
40 % of coins are pennies.</h2>
Step-by-step explanation:
Total number of coins = 600
Total number of pennies = 240
40 % of coins are pennies.
I believe that is c if I'm wrong I'm very sorry
Answer:
The z-score for this kernel is -2.3
Step-by-step explanation:
* Lets revise how to find the z-score
- The rule the z-score is z = (x - μ)/σ , where
# x is the score
# μ is the mean
# σ is the standard deviation
* Lets solve the problem
- The popping-times of the kernels in a certain brand of microwave
popcorn are normally distributed
- The mean is 150 seconds
- The standard deviation is 10 seconds
- The first kernel pops is 127 seconds
- We want to find the z-score for this kernel
∵ z-score = (x - μ)/σ
∵ x = 127
∵ μ = 150
∵ σ = 10
∴ z-score = (127 - 150)/10 = -23/10 = -2.3
* The z-score for this kernel is -2.3
Im saying C is the awnser
The lot is <u>9.2% of the an acre.</u>
<u>Given:</u>
Area of an acre = 4840 sq. yards
Area of lot = 40 by 100 ft = ![40 ]\times 100 = 4,000 $ ft^{2}](https://tex.z-dn.net/?f=40%20%5D%5Ctimes%20100%20%3D%204%2C000%20%24%20ft%5E%7B2%7D)
Convert the area of the lot to feet (
):
<em>Therefore:</em>
Area of lot = 
Percentage occupied by the lot = area of lot / area of acre x 100
The lot therefore is <u>9.2% of the an acre</u>.
Learn more here:
brainly.com/question/20730855
