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Rzqust [24]
3 years ago
9

Researchers once surveyed students on which superpower they would most like to have. The following two-way table displays data f

or the sample of students who responded to the survey.
What percent of students in the sample were male?
Round your answer to the nearest percent.
Mathematics
2 answers:
kaheart [24]3 years ago
6 0

Answer:

14/50 or 28%

Step-by-step explanation:

THERE ARE 14 MALES WHO CHOSE INVISIBILITY AND 50 MALES IN TOTAL.

EZPZ

GenaCL600 [577]3 years ago
4 0

Answer:

The percent of students in the sample who were male is 48%.

Step-by-step explanation:

The complete question is:

Researchers once surveyed 100 students on which superpower they would most like to have. The following two-way table displays data for the sample of students who responded to the survey.

Superpower    Male    Female    TOTAL

Fly                      26           12           38

Invisibility           12           32           44

Other                  10            8            18

TOTAL               48           52          100

What percent of students in the sample were male?

Solution:

The probability of an event <em>E</em> is the ratio of the number of favorable outcomes to the total number of outcomes.

P(E)=\frac{n(E)}{N}

The number of males in the sample is, <em>n</em> (M) = 48.

Total number of students, <em>N</em> = 100.

Compute the probability of selecting a male student as follows:

P(M)=\frac{n(M)}{N}\\

          =\frac{48}{100}\\\\=0.48

Then the percent of students in the sample who were male is:

\text{Percent of Males}=P(M)\times 100\%

                          =0.48\times 100\%\\\\=48\%

Thus, the percent of students in the sample who were male is 48%.

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Answer:

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Step-by-step explanation:

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nikitadnepr [17]

The <em><u>correct answers</u></em> are:

A-theorem ; B-corollary ; C-Postulate ; and E-Definition.

Explanation:

In a proof, we are tasked with proving one statement using other information that has already been proven.

Theorems are statements that have already been proven, and are used to prove other statements.

A postulate is a statement that is assumed to be true, and is used to prove other statements.

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4 years ago
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HELP ME PLZ IM CRYING predict the number of catfish kathy will catch next week if she catches 54 fish
marishachu [46]

Answer:

18

Step-by-step explanation:

Take a breath :) . I've got your back.

If she caught 6 carp + 8 bass + 7 catfish, she caught 6 +8 +7 fish total = 21.

7 of 21 were catfish.

If she catches 54 fish instead of 21, (and we have to assume the ratio stays the same), how many will be catfish?

Ratios are 7:21 and x:54, but we'll write them as fractions:

7/21 = x/54

Then cross multiply:

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divide both sides by 21

x = 18

If she catches 54 fish total, we predict she will catch 18 catfish.

---------------------------------------------

If we go back to the original 7/21, we can reduce that to 1/3. Then ask what is 1/3 of 54? 18.

8 0
3 years ago
If an island's only residents are penguins and bears, and if there are 21 heads and 50 feet on the island, how many penguins and
Ugo [173]

Answer:

The number of penguins on the island is 17 and the number of bears on the island is 4.

Step-by-step explanation:

We are given that an island's only residents are penguins and bears, and if there are 21 heads and 50 feet on the island.

Let the number of penguins on the island be 'x' and the number of bears on the island be 'y'.

Also, we know that bears and penguins both have one head, and the bear has 4 feet and the penguin has 2 feet.

<u>So, according to the question;</u>

  • The first condition states that there are 21 heads, that means;

                             x + y = 21  

                             x = 21 - y  ---------------- [equation 1]

  • The second condition states that there are 50 feet on the island, that means;

                            2x + 4y = 50

                             x + 2y = 25

                            21 - y + 2y = 25    {from equation 1}

                            y = 25 - 21

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Now, putting the value of y in equation 1, we get;

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                           x = 21 - 4 = 17

Hence, the number of penguins on the island is 17 and the number of bears on the island is 4.

4 0
4 years ago
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boyakko [2]

Answer:

x+7=4x-11

Step-by-step explanation:

Hi there!

Let x represent "the number".

A number added by 7 is the same as that number times four minus eleven.

A number added by 7 ⇒ x+7

Is the same as ⇒ x+7=

The number times four ⇒ x+7=4x

Minus eleven ⇒ x+7=4x-11

I hope this helps!

4 0
3 years ago
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