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3 years ago

If 225 is the dividend and 15 is the divisor, then what is the quotient?

Mathematics

2 answers:

LuckyWell [14K]3 years ago

6 0

Answer:

The answer is 15.

Step-by-step explanation:

When dividing 225 by 15 you can multiply 15 by 15 and you will get 225.

luda_lava [24]3 years ago

6 0

The answer is 15, 15 times 15 is 225

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1.How many combinations are possible from the letters HOLIDAY if the letters are taken?

Lesechka [4]

Using the combination formula, it is found that:

1. A. 7 combinations are possible.

B. 21 combinations are possible.

C. 1 combination is possible.

2. There are 245 ways to group them.

<h3>What is the combination formula?</h3>

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by:

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Exercise 1, item a:

One letter from a set of 7, hence:

$C_{7,1} = \frac{7!}{1!6!} = 7$

7 combinations are possible.

Item b:

Two letters from a set of 7, hence:

$C_{7,2} = \frac{7!}{2!5!} = 21$

21 combinations are possible.

Item c:

7 letters from a set of 7, hence:

$C_{7,7} = \frac{7!}{0!7!} = 1$

1 combination is possible.

Question 2:

Three singers are taken from a set of 7, and four dances from a set of 10, hence:

$T = C_{7,3}C_{10,4} = \frac{7!}{3!4!} \times \frac{10!}{4!6!} = 245$

There are 245 ways to group them.

More can be learned about the combination formula at brainly.com/question/25821700

6 0

2 years ago

A survey found that 12 out of 30 people preferred bacon over sausage. According to this survey, what percent of people pefer bac

Yakvenalex [24]

Answer: 40%

Step-by-step explanation:

first you symplify your fraction:

12/30 = 2/5

then divide your numerator from your denominator:

2÷5 =0.4

then you convert your decimal into a percentage:

0.4×100=40%

8 0

3 years ago

Plz help me.. 50 points if you answer all ill give brainliest

antoniya [11.8K]

1) 1/4+1/2

We need to convert the fractions.

1/4 is fine.

1 x 2=2

2 x 2=4

1/4+2/4=3/4

2) a+a

a can be written as 1a.

1a+1a=2a

I can't see photos and he doesn't know 3 or 4 and i'm confused on 5.

a=?

Hope it helps?

6 0

3 years ago

Read 2 more answers

Does anyone know the answer?? i’ll mark brainlists

vovangra [49]

I’d say D as the answer

7 0

2 years ago

if you could generate energy by fusing the hydrogen in solution a, how much of the solution would you need to generate the elect

iogann1982 [59]

Answer:

We know that:

Energy released by fusion of hydrogen in 1 liter of solution A = 7.6x10^10 J

Energy used daily in a certain family home = 3x10^4 J

(you did not write the units, so i suppose that are the same in both cases)

Then, if x is the number of liters of solution A used, the energy produced will be:

E(x) = x*7.6x10^10 J

And we want this equal to 3x10^4

then:

E(x) = x*7.6x10^10 J = 3x10^4 j

now we solve this for x.

x = (3x10^4 j)/(7.6x10^10 j) = 3.9x10^-7

Then you need to use 3.9x10^-7 L of solution a.

4 0

3 years ago