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faltersainse [42]

3 years ago

8

For a new customer, a video store charges $10 for a rental card plus $2 per movie. Write and solve a linear equation to find the

cost for a new customer to rent 6 movies.

2 answers:

Vlad1618 [11]3 years ago

6 0

Y = 2x + 10
Y = 2(6) + 10

The customer must pay 22 dollars

Serga [27]3 years ago

3 0

10+(2x)

10+(2x6)

10+12

22

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Jasper wants to buy a video game that costs $35. He has $10.50, and his weekly allowance is $5. If w represents the number of we

Ksju [112]

Answer:

He would have to wait for 5 weeks

Step-by-step explanation:

$5 x $5 = $25

$25 + $10.50 = $35.50

6 0

3 years ago

Read 2 more answers

Select all the statements you agree with.

wolverine [178]

The statements that I agree with, with respect to a parallelogram are:

A parallelogram has six sides.
Opposite sides of a parallelogram are parallel.
All angles of a parallelogram have the same measure.
All sides of a parallelogram have the same length.

<h3>What is a parallelogram?</h3>

A parallelogram can be described as the quadrilateral that do contains two pairs with respect to their parallel sides.

It should be noted that the sides that can be found in the parallelogram are usually of the same length and there the sides that can be attributed to a parallelogram is usually 6.

Therefore, the option 1,2,4,5 are correct.

Learn more about parallelogram at:

brainly.com/question/970600

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6 0

10 months ago

2. In your own words, explain HOW to find the standard deviation of this data set. (20 points) 3. What does the standard deviati

Ket [755]

Answer:

$\sigma = 11.28$ --- Standard deviation

Step-by-step explanation:

Given

See attachment for graph

Solving (a): Explain how the standard deviation is calculated.

<u>Start by calculating the mean</u>

To do this, we divide the sum of the products of grade and number of students by the total number of students;

i.e.

$\bar x = \frac{\sum fx}{\sum f}$

So, we have:

$\bar x = \frac{50 * 1 + 57 * 2 + 60 * 4 + 65 * 3 +72 *3 + 75 * 12 + 77 * 10 + 81 * 6 + 83 * 6 + 88 * 9 + 90 * 12 + 92 * 12 +95 * 2 + 99 * 4 + 100 * 5}{1 + 2 + 4 + 3 +3 + 12 + 10 + 6 + 6 + 9 + 12 + 12 +2 + 4 + 5}$

$\bar x = \frac{7531}{91}$

$\bar x = 82.76$

Next, calculate the variance using the following formula:

$\sigma^2 = \frac{\sum f(x - \bar x)^2}{\sum f}$

i.e subtract the mean from each dataset; take the squares; add up the squares; then divide the sum by the number of dataset

So, we have:

$\sigma^2 = \frac{1 * (50 - 82.76)^2 +...................+ 5 * (100 - 82.76)^2}{91}$

$\sigma^2 = \frac{11580.6816}{91}$

$\sigma^2 = 127.26$

Lastly, take the square root of the variance to get the standard deviation

$\sigma = \sqrt{\sigma^2}$

$\sigma = \sqrt{127.26}$

$\sigma = 11.28$ --- approximated

<em>Hence, the standard deviation is approximately 11.28</em>

Considering the calculated mean (i.e. 82.76), the standard deviation (i.e. 11.28) is small and this means that the grade of the students are close to the average grade.

8 0

2 years ago

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Marianna [84]

The value of x is 7 because 8/24 = 1/3 so find 1/3 of 21

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How do you dilate a figure on a coordinate plane if you want to make the shape larger? How would your steps change if you want t

Papessa [141]

If u want to make the shape larger, u will have to multiply it by the scale factor that is greater then 1.

if u want to make the shape smaller, then u will multiply by the scale factor that is between 0 and 1

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3 years ago