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Drupady [299]
3 years ago
9

What percent of 25 is 20

Mathematics
2 answers:
ipn [44]3 years ago
7 0
80% bc 20/25 equals 4/5 and 4/5 equals x/100 and when you do that math it equals 80%
oksian1 [2.3K]3 years ago
6 0

What percent of 25 equals 20

If x is the percentage,

25 * x = 20

We would multiply x by 25 because when the question includes "of" it indicates multiplication

Divide both sides of the equation by 25 to isolate x, what we want to find out

x = 0.8

The percent (x) is in decimal form, to convert it to a percent move the decimal 2 spaces down- basically multiply it by 100

x = 80%

20 is 80% of 25


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Lena [83]

By finding the probability, we can expect that 2 out of the 30 students will win the prize.

<h3>How many of the 30 students will win the prize?</h3>

First, we should get the probability of winning this game.

Here the students select two numbers out of 6, just to make the calculations let's say that these numbers are 1 and 2.

Now, we need to get these two numbers in two balls. The probability of getting the ball with the number 1 out of the 6 balls is:

p = 1/6

The probability of getting the ball with the number 2 out of the remaining 5 balls (because we already got one) is:

q = 1/5

The joint probability is then:

P = 2*(1/6)*(1/5) = 1/15.

Where the factor 2 comes to take in account the permutations, for the case where we first draw the number 2 and then the number 1.

Then the expected number of students that will win is equal to the probability times the total number of students:

(1/15)*30 = 2

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8 0
1 year ago
Can somebody help me?
Vikentia [17]
9+3t is your answer.......
8 0
2 years ago
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SOMEONE PLEASE HELP 100 POINTS AND BRAINLIEST AND 5 STAR RATING! PLEASE HELP! :)
weqwewe [10]

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---------   =  ---------

3 in               x inches


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4 0
3 years ago
A tennis ball weighs about 57.6 grams. about how many apuntes would 12 tennis balls weigh?
Ilia_Sergeevich [38]

Answer:

The weight of 12 tennis balls  =  691. 2 grams

Step-by-step explanation:

The weight of each  tennis ball =  57.6 grams

So, the weight of 12 balls    =    12 x ( weight of 1 ball)

                                              = 12 x 57.6 grams

                                              = 691.2 grams

⇒12 balls weigh 691.2 grams

Hence, the weight of 12 tennis balls  =  691. 2 grams

7 0
3 years ago
2(5x+4)-3x<br>Only for Best users.​
OlgaM077 [116]

Answer:

7x+8

Step-by-step explanation:

2(5x+4)-3x

distribute: 10x+8-3x

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6 0
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