We can setup an equation for this.
Boys to Girls = 2:7
Boys = x
Girls = 250+x
Setup the ratio
x:(250+x) = 2:7
x / (250+x) = 2/7
7x = 500+2x
7x-2x = 500
x = 500/5 =100
There are 100 boys at the concert
Answer:
-6
Step-by-step explanation:
y intercept is -6 because formula of gradient is y=mx+c.......c is the y intercept
Whoever does paper homework, This is what you do: Get your homework out. Example: Math or something Find a word problem and google the exact problem with no lower case at the beginning When you google that problem, You will most likely find PDFs. Look through the PDFs. One pdf may have only your problem's answer or one pdf may have answers for the whole page! or even a lesson
Using the normal distribution, it is found that 10.56% of the apples weigh less than Jermaine's apple.
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In a <em>normal distribution</em> with mean
and standard deviation
, the z-score of a measure X is given by:
- It measures how many standard deviations the measure X is from the mean.
- After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X, that is, the proportion of measures that are less than X.
In this problem:
- Mean of 0.33 pounds, thus
. - Standard deviation of 0.06 pounds, thus
. - The proportion that is less than 0.25 pounds is the p-value of Z when X = 0.25, thus:



has a p-value of 0.1056.
0.1056 x 100% = 10.56%.
10.56% of the apples weigh less than Jermaine's apple.
A similar problem is given at brainly.com/question/13411796
Answer:
4
Step-by-step explanation:
2+2 is 4