All categories

2 years ago

Help solving the problem for number 1-3

Mathematics

1 answer:

lbvjy [14]2 years ago

8 0

1. 4 boxes for 12.....12/4 = 3...paid 3 per box
if 6 were bought....6 * 3 = 18 bucks would be spent

2. 2/9 of 36..." of " means multiply
2/9 * 36 = 72/9 = 8 expected to forget their bows

3. 8 packs for 32.....32/8 = 4 per pack
if 14 packs were bought.....14 * 4 = 56 bucks would be spent

You might be interested in

What is the diameter of a circle whose radius is 6.45 meters

Vikentia [17]

12.9
Diameter is just the radius times 2

6 0

2 years ago

Need help pls<br>thank you in advance

ira [324]

Answer:

<u />

$\textsf{Mean}\:\overline{X}=\sf \dfrac{\textsf{sum of all the data values}}{\textsf{total number of data values}}$

$\implies \sf Mean\:(Nilo)=\dfrac{5+6+14+15}{4}=\dfrac{40}{4}=10$

$\implies \sf Mean\:(Lisa)=\dfrac{8+9+11+12}{4}=\dfrac{40}{4}=10$

<h3><u>Standard Deviation</u></h3>

$\displaystyle \textsf{Standard Deviation }s=\sqrt{\dfrac{\sum X^2-\dfrac{(\sum X)^2}{n}}{n-1}}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Nilo)} & =\sqrt{\dfrac{(5^2+6^2+14^2+15^2)-\dfrac{(5+6+14+15)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{482-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{82}{3}}\\\\& = 5.23\end{aligned}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Lisa)} & =\sqrt{\dfrac{(8^2+9^2+11^2+12^2)-\dfrac{(8+9+11+12)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{410-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{10}{3}}\\\\& = 1.83\end{aligned}$

<h3><u>Summary</u></h3>

Nilo has a mean score of 10 and a standard deviation of 5.23.

Lisa has a mean score of 10 and a standard deviation of 1.83.

The <u>mean</u> scores are the <u>same</u>.

Nilo's standard deviation is higher than Lisa's. Therefore, Nilo's test scores are more <u>spread out</u> that Lisa's, which means Lisa's test scores are more <u>consistent</u>.

5 0

1 year ago

I need help asap. anyone?

Charra [1.4K]

Answer:

Step-by-step explanation:

Has the correct y-axis and has the graph going the correct way for both functions.

7 0

2 years ago

Read 2 more answers

Not gonna sugar coat it <br> im cheeting...

Neporo4naja [7]

Answer:

The answer is <u><em>-0.44</em></u>.

Hope that helps. x

6 0

1 year ago

Read 2 more answers

Given: AB = 4 AC = 6 What point is in the interior of both circles? H. A. B.

AleksAgata [21]

Answer:

Point A is in the interior of both circles

Step-by-step explanation:

<u><em>Verify each point</em></u>

we know that

Point H is in the interior of greater circle but is outside smaller circle

Point A is the center both circles, then is in the interior of greater circle and is in the interior of smaller circle

Point B is on the smaller circle and is in the interior of greater circle

therefore

Point A is in the interior of both circles

5 0

3 years ago