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3 years ago

9

The price of a board game is $24. The price of the board game is 3 times as much as the price of a jigsaw puzzle. What is the pr

ice of the jigsaw puzzle? *
1 point
Option 1
$8
$21
$27
$72

2 answers:

mel-nik [20]3 years ago

5 0

It’s $72, bc it’s 3x 24. When you see “times” means more.

vivado [14]3 years ago

3 0

Answer:

8 because it is 8 and I am soooooo smart

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The point (8,-4) is shown,which is the location of (8,-4 <br> A. Q<br> B. R <br> C. S<br> D. T

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Step-by-step explanation:

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3 years ago

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The coordinates of points A and B are A(4, -2) and B(12, 10). What are the coordinates of the point that is 1/4 of the way from

Vanyuwa [196]

Answer:

Step-by-step explanation:

(4 + 12)/4 = 16/4 = 4

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3 0

3 years ago

Need help please!! Will give points

Nataly [62]

Answer:

1. $\bar X=5.10$

2. $\sigma=0.47$

3. $\sigma^2=0.22$

Step-by-step explanation:

<u>QUESTION 1</u>

The given data set for the expenditure is

$4.85,5.10,5.50,4.75,4.50,5.00,6.00$

The formula for calculating the mean is given by,

$\bar X=\frac{\sum x}{n}$

We need to add all the expenditure and divide by the total number of days.

$\bar X=\frac{4.85+5.10+5.50+4.75+4.50+5.00+6.00}{7}$

This gives us,

$\bar X=\frac{35.7}{7}$

$\Rightarrow \bar X=5.10$ to the nearest hundredth.

<u>QUESTION 2</u>

The standard deviation of the data set is given by the formula;

$\sigma =\sqrt{\frac{\sum(x-\bar X)^2}{n} }$

This implies that,

$\sigma =\sqrt{\frac{(4.85-5.10)^2+(5.10-5.10)^2+(5.50-5.10)^2+(4.75-5.10)^2+(4.50-5.10)^2+(5.00-5.10)^2+(6.00-5.10)^2}{7} }$

This will give us,

$\sigma =\sqrt{\frac{(-0.25)^2+(0.00)^2+(0.40)^2+(-0.35)^2+(-0.60)^2+(-0.10)^2+(0.90)^2}{7} }$

$\sigma =\sqrt{\frac{0.0625+0+0.16+0.1225+0.36+0.01+0.81}{7} }$

$\sigma =\sqrt{\frac{61}{280} }$

$\sigma =0.466775$

to the nearest hundredth,

$\sigma =0.47$ .

<u>QUESTION 3</u>

The variance is the square of the standard deviation.

$\sigma^2 =(0.46675)^2$

$\sigma^2 =0.217857$

To the nearest hundred gives,

$\sigma^2 =0.22$

3 0

3 years ago