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ale4655 [162]
2 years ago
5

What is 25% of 40? I need the answer quickly!! First gets 5 stars and a thank you!!

Mathematics
2 answers:
eimsori [14]2 years ago
6 0

Answer:

The answer is 10

I hope this helped and please mark me as brainliest!

Margarita [4]2 years ago
5 0

Answer:

10

Step-by-step explanation:

40 x .25 = 10

hope this helps just let me know if you have any questions about my answer:P

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Melly was n years old last year. How old will she be in 4 years time?
deff fn [24]

Answer:

n + 5

Step-by-step explanation:

if last year melly was N year old, she is now n+1 years old.

So, in four years, she will be

(n + 1) + 4 years old

meaning that she will be n + 5 years old.

hope this helps!! :)

6 0
2 years ago
Read 2 more answers
Please help I would reall6 appreciate it
madreJ [45]
Help with what? Have a question or a picture to show?
3 0
3 years ago
The daily dinner bills in a local restaurant are normally distributed with a mean of $28 and a standard deviation of $6. What ar
Degger [83]

Answer:

The minimum value of the bill that is greater than 95% of the bills is $37.87.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure 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. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 28, \sigma = 6

What are the minimum value of the bill that is greater than 95% of the bills?

This is the 95th percentile, which is X when Z has a pvalue of 0.95. So X when Z = 1.645.

Z = \frac{X - \mu}{\sigma}

1.645 = \frac{X - 28}{6}

X - 28 = 6*1.645

X = 37.87

The minimum value of the bill that is greater than 95% of the bills is $37.87.

4 0
3 years ago
Archaeologists can determine the diets of ancient civilizations by measuring the ratio of carbon-13 to carbon-12 in bones found
harkovskaia [24]

Answer:

yessirrr

Step-by-step explanation:

4 0
3 years ago
Find the coordinates of the midpoint between point A(18, -6) and the origin.
Sedbober [7]
Mid point b/w (18,-6),(0,0)
X = 0+18/2 = 9
y = 0-6/2 = -3
thus mid point is (9,-3)
4 0
3 years ago
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