A cooking club has 12 members. How many ways can they select a president and vice president from among the members?

A.

220

B.

66

C.

1320

D.

132

Answers

Answer 1

Answer: The question is on how many ways can a cooking club with 12 members select a president and a vice president among themselves. First, 12 of them are selecting a president and they can do it in 12 different ways, then, 11 of them are selecting a vice president and they can do it in 11 different ways. When we multiply 12*11 we get that the overall number of ways they can select a president and a vice president is 132. So the correct answer is D. 132.

Answer 2

Answer: the correct answer is d 132

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Divide 25kg in a ratio of 2:3:5

Answers

The required answer is 25 kg in the ratio 2 : 3 : 5 = 5 : 7.5 : 12.5.

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

We have to divide 25 kg into the ratio 2 : 3 : 5

The ratio is given in the question

⇒ 2:3:5

We can see that the sum of the parts of the given ratio as

⇒ 2 + 3 + 5 = 10 parts

Divide 25 by 10 to determine the value of one part of the ratio

So the value of 1st part of the ratio

⇒ 25 ÷ 10 = 2.5

Now, 2nd parts = 2 × 2.5 = 5

And, 3rd parts = 3 × 2.5= 7.5

And, 4th parts = 5 × 2.5= 12.5

So, 25 in the ratio 2 : 3 : 5 = 5 : 7.5 : 12.5

Therefore, the required answer is 25 kg in the ratio 2 : 3 : 5 = 5 : 7.5 : 12.5.

To learn more about the Ratio click here:

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2 + 3 + 5 = 10

25 ÷ 10 = 2.5

2.5 × 2 = 5
2.5 × 3 = 7.5
2.5 × 5 = 12.5

5 : 7.5 : 12.5

Regular pentagon

sides 3.3 cm long

Answers

3.3 x 5 = 16.5 cm
Happy to Help!

Simplify the expression below. (3^5)^33^3

3^5

3^8

3^15

Answers

Answer:

14348907

Step-by-step explanation:

3^15 is it put in scientific notation.

Answer:

14348907

Step-by-step explanation:

2 thousands 7 tens divided by 10 equal

Answers

The answer is 207 or 2 hundreds 7 ones in unit form or two hundred seven in word form.

Further explanation

2 thousands 7 tens are a unit form. The standard form is 2,070.

Explanations and an example of questions about the four types of number forms can be found at brainly.com/question/4725342.

The key problem is working out the value of 90,000 divide by 10. This is a division operation.

$\boxed{2,070 / 10 = ?}$

Option-1

Both numbers are divided by 10.

$\boxed{2,070 / 10 = 207 / 1}$

The result is

$\boxed{2,070 / 10 = 207}$

Option-2

Division operations can be written as fractions, like this.

$\boxed{(2,070)/(10) = ?}$

The numerator and denominator are both divided by 10, or 'cross out a zero from both'.

$\boxed{(207)/(1) = ?}$

The result is

$\boxed{2,070 / 10 = 207}$

- - - - - - -

If x is divided by y equals z, then x is equal to y multiplied by z.

$\boxed{If \ x / y = z \ or \ (x)/(y) = z, then \ x= y * z}$

Let's prove it!

$\boxed{If \ 2,070 / 10 = 207 \ or \ (2,070)/(10) = 270, then \ 2,070 = 10 * 207}$

This is proven.

Learn more

Explanations and an example of a question about the four types of number brainly.com/question/4725342
5000 is ¹/₁₀ of what? brainly.com/question/106300
9 ten thousands divided by ten? brainly.com/question/545132

Keywords: 2 thousands 7 tens divided by 10, division operation, unit form, standard form, fractions, cross out a zero, the numerator and denominator

Final answer:

The question '2 thousands 7 tens divided by 10 equals' questions a simple concept in Mathematics. We convert 2 thousands 7 tens to 2070 and when we divide this number by 10, we get 207.

Explanation:

First, let's convert 2 thousands 7 tens to a numerical representation. This amounts to 2000 + 70 = 2070. When we divide 2070 by 10, we are essentially moving the decimal one place to the left, as division by 10 means reducing each digit's place value by one. Hence, the answer would be 207.

Learn more about division here:

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Create a proportion using the form = to represent the following word problem.78% of what number is 42?

Answers

Answer :
x = 53.85

Step by step explanation:
If 78% of x (some numbers) is equal to 42, then we must set this as an equation to find it.

1) Rewriting 78% as a fraction and considering that when we say 78% of some number (x) we mean a product.
78% = 78/100 ➡️ 78/100x = 42

2) Then we can go on :
100 * 78/100x = 42 * 100
78x = 4200
78x/78 = 4200/78 ➡️ x = 53.85

3) Alternatively, simply dividing 42 by 0.78 (78%) would come to the same result :

42/0.78 = 53.85

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 42 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 42 is 100%, so we can write it down as 42=100%.
4. We know, that x is 78% of the output value, so we can write it down as x=78%.
5. Now we have two simple equations:
1) 42=100%
2) x=78%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
42/x=100%/78%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 78% of 42

42/x=100/78
(42/x)*x=(100/78)*x - we multiply both sides of the equation by x
42=1.28205128205*x - we divide both sides of the equation by (1.28205128205) to get x
42/1.28205128205=x
32.76=x
x=32.76

Write an equation of a line in slope-intercept form with the given slope and y- intercept. Slope: -3/4, Y- intercept -2