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matrenka [14]
2 years ago
15

Cost of admission to a town fair was $8 for adults and $5 for children. If 206 people

Mathematics
1 answer:
tatiyna2 years ago
7 0
I think 176 adult tickets were sold , sry if it’s wrong i’m kinda bad in math
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Assume that by continuing your education, you increased your yearly earning potential from $21,484 to $39,746. If the additional
Ede4ka [16]

Answer:

By continuing my education I increased my earning potential from $21,484 to $39,746 a year. That's a difference of $18262 a year.

If the additional education costs $18,000, then in one year it will pay for itself.

7 0
3 years ago
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Seraphina picked 120 strawberries in six hours. At this rate, how many strawberries did Seraphina pick in 4 hours?
Lyrx [107]

Answer:

80 Strawberries

Step-by-step explanation:

If she picked 120 strawberries in 6 hours

Then in 1hour she picked 120/6 = 20 strawberries

Then in 4 hours she picked 20×4 = 80 strawberries

8 0
3 years ago
A worn, poorly set-up machine is observed to produce components whose length X follows a normal distribution with mean 14 centim
Akimi4 [234]

Answer:

74.86% probability that a component is at least 12 centimeters long.

Step-by-step explanation:

Problems of normally distributed samples are solved using 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 problem, we have that:

\mu = 14

Variance is 9.

The standard deviation is the square root of the variance.

So

\sigma = \sqrt{9} = 3

Calculate the probability that a component is at least 12 centimeters long.

This is 1 subtracted by the pvalue of Z when X = 12. So

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

Z = \frac{12 - 14}{3}

Z = -0.67

Z = -0.67 has a pvalue of 0.2514.

1-0.2514 = 0.7486

74.86% probability that a component is at least 12 centimeters long.

6 0
3 years ago
Which is bigger0.9 or 19/20
Mazyrski [523]
19/20

19/20 = 0.95

0.9 < 0.95
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3 years ago
The town bought 36 kilograms of wood chips for their playgrounds.
olganol [36]
36 / 9 = 4
Answer : 4 play areas.
7 0
3 years ago
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