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kvasek [131]
2 years ago
14

Marnie conducted an experiment using a bag of 12 marbles containing an equal number of blue, red, and green marbles. She randoml

y chose one marble, noted the color, and returned the marble to the bag. Marnie did this for a total of 20 trials. The table below shows the results.
Event
Count
Blue
7
Red
8
Green
5

What was the experimental probability of choosing a blue marble from a bag?
StartFraction 7 over 20 EndFraction
StartFraction 7 over 13 EndFraction
StartFraction 7 over 12 EndFraction
Mathematics
2 answers:
Ierofanga [76]2 years ago
8 0
I like the color red and black so I would go with red
kolezko [41]2 years ago
8 0

Answer:

I like the color red and black so I would go with red

Step-by-step explanation:

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There are 25 students on the school bus, 5 girls and 20 boys. What is the ratio
Zepler [3.9K]

Answer:

1:4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the common denominator. Click all that applies. 1/4 and 1/2 3/12 and 6/12 3/12 and 6/12 1/4 and 1/2
kozerog [31]
There is a common denominator of 12 among those fractions.
7 0
2 years ago
Tell why sometimes you write the percent as a fraction and other times as a decimal when you find the percent of a number.
Marysya12 [62]
A percentage is a portion out of 100, and because it is a portion of a whole it can be written as a fraction of an amount (in this case a fraction of 100). You can also rewrite this as a decimal because a fraction is essentially the same thing as a division problem and when you divide a number by 100 you usually get a decimal (if the numerator is smaller than 100 that is), and also because decimals are similar to fractions because they represent parts a whole unit for instance the percentage 72% is equivalent to the fraction 72/100 which is the same as 72 divided by 100 which is the same as the decimal 0.72.

Sorry for the long explanation but I hope this helped! 
6 0
3 years ago
The perimeter of a rectangle is 61 feet. The length is 5 more than twice the width. What is the length and width?
DochEvi [55]

Answer:

Length = 22 feet Width= 8.5 feet

Step-by-step explanation:

Perimeter= 61

Let Width= x

Length= 2x+5

Perimeter= 2l + 2w

61= 2(2x+5) + 2x

61 = 2(2x+5+x)

61/2 = 3x+5

30.5 -5 = 3x

25.5 = 3x

25.5/3 =x

x= 8.5

Hence, width = 8.5 feet

Then, the length = 2x+5 = 2(8.5) +5 = 22 feet

Hope this helps!

6 0
3 years ago
Write 5.9/100 as a percent
leonid [27]
Here is your answer:

<span>5.9/100 * 100 = 0.059
0.059 * 100 = 5.9%
=5.9% 

Therefore the answer is "5.9%."

Hope this helps!</span>
5 0
3 years ago
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