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3 years ago

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Antonia and Carla have the same percentage of green marbles in their bags of marbles. Antonia had 4 green marbles and 16 total m

arbles. Carla had 10 green marbles. How many of Carla's marbles are not green?

1 answer:

Zarrin [17]3 years ago

3 0

for the first answer is 4 because 4x4=16

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A true-false quiz with 10 questions was given to a statistics class. Following is the probability distribution for the score of

mart [117]

Solution

Question 1:

- The formula for finding the mean score is that of the expected value formula. That is,

$\begin{gathered} E(x)=\sum_{i=1}p_i\times x_i \\ where, \\ p=\text{ The probability of getting a score of }x\text{ } \\ x=\text{ The actual score} \end{gathered}$

- Thus, the mean can be gotten as follows:

$\begin{gathered} \sum px=5\left(0.06\right)+6\left(0.16\right)+7\left(0.34\right)+8\left(0.23\right)+9\left(0.15\right)+10(0.06) \\ =7.43 \end{gathered}$

The mean score is 7.43

Question 2:

- The more students write the exam, the more the mean score will approach the theoretical mean score.

- The theoretical mean score is calculated above to be 7.43

- Thus, as more students write the quiz, their scores approach 7.43

7 0

1 year ago

I need help with this picture.

oksian1 [2.3K]

A) x+0.25>-8
-0.25 -0.25
x>7.75

B) -1<x-10
+10 +10
9<x

4 0

3 years ago

True or false -3>7(1)-10

zubka84 [21]

Answer:

false

Step-by-step explanation:

7(1)-10=-3

which means -3=7(1)-10

5 0

3 years ago

If a spinner is broken into 8 equal parts, numbered from 1-8. what is the probability that the spinner will land on 5 than on 3,

miss Akunina [59]

Not sure but i think its both 1/8ths...not sure though...sorry

5 0

3 years ago

Read 2 more answers

Joe is planning a rectangular garden for spring and he needs To fence it to keep the rabbits out he has 54 m of fencing to go ar

NNADVOKAT [17]

The equation is 2(3x + 9) = 54

The length is 21 m and the width is 6 m

Step-by-step explanation:

Joe is planning a rectangular garden for spring and he needs to fence it to keep the rabbits out

He has 54 m of fencing to go around the perimeter of the garden
He wants the length of the garden to be 9 m more than twice the width

We need to set up an equation to solve it and find the length and the width

Assume that the width of the garden is x meters

∵ The width of the garden is x meters

∵ The length of the garden has to be 9 m more than twice the width

- Multiply x by 2 and then add 9 to find the length

∴ The length = 2x + 9

∵ The perimeter of a rectangle = 2(length + width)

∵ Length = 2x + 9

∵ Width = x

∴ The perimeter of the garden = 2(2x + 9 + x)

- Add like terms

∴ The perimeter of the garden = 2(3x + 9)

∵ The length of the fence = 54 m

∵ The length of the fence is the perimeter of the garden

- Equate the perimeter of the garden by 54

∴ 2(3x + 9) = 54

- Subtract 18 from both sides

∴ 6x = 36

- Divide both sides by 6

∴ x = 6

∵ x represents the width of the garden

∴ The width of the garden is 6 meters

∵ 2x + 9 represents the length of the garden

∴ The length of the garden = 2(6) + 9 = 12 + 9 = 21 meters

The equation is 2(3x + 9) = 54

The length is 21 m and the width is 6 m

Learn more:

You can learn more about solving linear equations in brainly.com/question/13168205

#LearnwithBrainly

6 0

3 years ago