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3 years ago

Help me pls the question is in the picture

Mathematics

2 answers:

diamong [38]3 years ago

7 0

The should be answer is 20

vladimir2022 [97]3 years ago

5 0

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Answer: 20

Explanation: 11 x 5 = 55 + 25 + 20 = 100 meaning 20 nickels

I hope this helped!

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- Zack Slocum

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Simplify it using order of operations<br><br><br><br>

natta225 [31]

Answer:

=106

Step-by-step explanation:

PMDAS

First thing you do is the parenthesis

6+4(5)^2

then the exponent

6+4(25)

then multiply

6+100

then add

106

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8 0

4 years ago

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On a certain hot summer's day, 694 people used the public swimming pool. The daily prices are $ 1.25 for children and $ 2.50 fo

Marianna [84]

Answer:

382 children and

312 adults swam

Step-by-step explanation:

Let the number of children be x

And let the number of adult be y

Hence on a hot summer day

x +y = 694 - - - - - - - 1

x= 694-y

Also the daily prices are $ 1.25 for children and $ 2.50 for adults

1.25x + 2.50y= 1257.50-------2

Let us substitute x= 694-y in equation 2

1.25(694-y) + 2.50y =1257.50

867.5-1.25y +2.50y = 1257.50

-1.25y+2.50y= 1257.58-867.5

1.25y= 390

y= 398/1.25

y= 312

Substitute y= 312 in equation 1 to find x

x + 312= 694

x= 694-312

x= 382

Hence 382 children and

312 adults swam

4 0

3 years ago

I neeeeeeeeeed helpppp???????? In question number 2 and 3

Firlakuza [10]

Answer:

focus on it for a few hours

Step-by-step explanation:

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3 years ago

Korey is planning to open a comic book store. He has developed the following expense breakdown for set-up and operation for the

pentagon [3]

The total amount of cash money that Korey have is the summation of his savings and his inheritance which is equal to Korey cash = $8500 + $25,000.
To identify the amount needed to be funded by loans or investors, we need to know first the total of expenses plus set-up plus operation expenses and other expenses to operate the bookstore subtracted by his savings.

Thus, let "AL" be the amount needed through loans while letting "TE" for total expenses.

AL=TE-($8500+$25000)
AL=TE-$33,500

This is the equation needed to determine the amount needed.

8 0

3 years ago

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According the April 12, 2017 Pew Research survey, 58% of Americans approve of U. S. Missile strikes in Syria in response to repo

Dvinal [7]

The probability that more than 30 Americans of the 50 in the survey approve of the missile strikes is .3859

<h3>How to determine if the normal distribution can be applied?</h3>

The given parameters are:

Sample size, n = 50

Population proportion, p = 0.58

By central limit theorem (CLT), the normal approximation can be used with this distribution because the sample size is greater than 30

<h3>The mean of the sampling proportion? </h3>

This is the same as the population proportion.

So, the mean of the sampling proportion is 0.58

<h3>The standard deviation sampling proportion? </h3>

This is calculated using:

$\sigma = \sqrt{\frac{p(1 - p)}{n}}$

So, we have:

$\sigma = \sqrt{\frac{0.58 * (1 - 0.58)}{50}}$

σ = 0.0698

<h3>That no more than 25 Americans approve of the missile strikes? </h3>

Start by calculating the p-value

p = 25/50

p = 0.5

The z-score is:

$z = \frac{x - \mu}{\sigma}$

This gives

$z = \frac{0.5 - 0.58}{0.0698}$

This gives

z = -1.15

Using the z-table of probability, the requested probability is:

P(z ≤ -1.15) = 0.1251

<h3>The probability that more than 30 approved of the missile strikes? </h3>

Start by calculating the p-value

p = 30/50

p = 0.6

The z-score is:

$z = \frac{x - \mu}{\sigma}$

This gives

$z = \frac{0.6 - 0.58}{0.0698}$

This gives

z = 0.29

Using the z-table of probability, the requested probability is:

P(z > 0.29) = 0.3859

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8 0

2 years ago