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3 years ago

13

help me brainlist if you right Mona is inviting 10 friends to a party. Each friend wants 5 cookies and each box has 10 cookies.

How many boxes should Moana get?

1 answer:

seropon [69]3 years ago

5 0

Answer:

its 5 boxes

Step-by-step explanation:

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For how many games is the total cost of bowling equal for the two bowling establishments? Family bowling, game $4, shoes $1. Kni

ladessa [460]

$2^4785733858979-|&duts7stpzo64suprxxruxpu5dp7d058d805d0y7f

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4 years ago

What position did Theodore Roosevelt hold before he became president?

BlackZzzverrR [31]

Answer:

He served as Assistant Secretary of the Navy under President William McKinley

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3 years ago

Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5

Ugo [173]

Answer:

$s^2 = 0.01$

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$

First, we calculate the mean

$\overline x = \frac{\sum x}{n}$

$\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}$

$\overline x = \frac{7.4}{4}$

$\overline x = 1.85$

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$ becomes

$s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}$

$s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}$

$s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}$

$s^2 = \frac{0.03}{3}$

$s^2 = 0.01$

<em>Hence, the variance is 0.01</em>

5 0

3 years ago

Im bored in this quarentine and have a lot of work to catch up on. One of my math problems is "How much water should be added to

Kazeer [188]

Answer:

20/3 ounces of water is added.

Step-by-step explanation:

how many ounces of pure water should be added to 20 ounces of 40% solution of muriatic acid to obtain a 30% solution of muriatic acid?

--------------

The acid is 40% of 20 ounces = 8 ounces.

0.4*20 = 8

----------

That same 8 ounces is to be 30%. The water will be the other 70%.

8/30 = x/100

30x = 800

x = 80/3, the total amount of the solution.

We started with 20, so 80/3 - 20 = 20/3

20/3 ounces of water is added.

8 0

3 years ago

The independent variable of a data set is x,while the dependent variable is y.which of these is a response variable

Fudgin [204]

Answer:

Dependent variable is a response variable

Step-by-step explanation:

Search up definition for response variable and it literally saids it's another word for dependent variable haha

3 0

3 years ago

Read 2 more answers