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3 years ago

Who wanna tal.k? im b0red :P (also ima female w/ blond hair, blue eyes, and medium body type)

Mathematics

2 answers:

Fantom [35]3 years ago

8 0

Answer:

Step-by-step explanation:

yulyashka [42]3 years ago

4 0

Answer:

I need points

Step-by-step explanation:

:)))))))))))))))))

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Ms. Rivera created two dot plots to compare the results of her recent science quiz for 1st period students compared to 7th perio

Lorico [155]

The dot plots is an illustration of charts and graphs

The average score of period 7 is greater than the average score of period 1

<h3>How to determine the period with the higher average?</h3>

From the dot plots in the complete question, we have the following frequency tables

<u>Period 1</u> <u>Period 7</u>

Score Students Score Students

55 1 65 1

70 1 75 3

75 6 80 5

80 6 85 6

85 2 90 3

90 3 95 2

95 1

The average is calculated using:

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

For period 1, we have:

$\bar x_1 = \frac{55 * 1 + 70 * 1 + 75 * 6 + 80 * 6 + 85 * 2 + 90 * 3 + 95 * 1}{1 + 1 + 6 + 6 + 2 + 3 + 1}$

Evaluate the sum

$\bar x_1 = \frac{1590}{20}$

Evaluate the quotient

$\bar x_1 = 79.5$

For period 7, we have:

$\bar x_7 = \frac{65 * 1 + 75 * 3 + 80 * 5 + 85 * 6 + 90 * 3 + 95 * 2}{1 + 3 + 5 + 6 + 3 + 2}$

Evaluate the sum

$\bar x_7 = \frac{1660}{20}$

Evaluate the quotient

$\bar x_7 = 83$

By comparison, 83 is greater than 79.5

Hence, the average score of period 7 is greater than the average score of period 1

Read more about dot plots at:

brainly.com/question/12276901

8 0

2 years ago

Martin needs 60 meters of fence to surround a rectangular garden.

Karolina [17]

Answer:

The garden is 10 ft. wide.

Step-by-step explanation:

2 • (2w + w) = 60 here is an equation to show how I got the width (10 ft.)

2 x 3w = 60

6w = 60

Divide 6 from both sides, 6 & 6 cancel out and 60 divided by 6 is 10.

6 0

2 years ago

Distribute then combine like terms in the following: 2(2x - 3y) - 3(x - 2y - 4) 4

nikdorinn [45]

I think its:

2(2x-3y)-3(x-2y-4)4

4x-6y-3x-6y(4)

4x-6y-3x-24y

x-30y

3 0

3 years ago

Read 2 more answers

A prism is completely filled with 540 cubes that have edge length of 13 cm. What is the volume of the prism? Enter your answer i

Anettt [7]

Answer:

vp=1186380cm^3

Step-by-step explanation:

Number of cubes =540
length of one edge=13cm
$volume \: of \: a \: cube = {l}^{3} \\ v = {(13cm)}^{3} \\ = {2197cm}^{3} \\$
$volume \: of \: prism \: = volume \: of \: cube \: \times \: nuber \: of \: cubes \\ volume \: of \: prism = ( {2197cm}^{3} )(540) \\ = 1186380 {cm}^{3} = 1.1864 {m}^{3}$

5 0

3 years ago

The formula I = PRT where I = Interest, P = principal, R = rate, and T = time is used to calculate the amount of simple interest

andre [41]

Answer:

Step-by-step explanation:

I=PRT

T=I/PR

6 0

3 years ago