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myrzilka [38]
2 years ago
10

Why does nCn equal 1

Mathematics
1 answer:
alex41 [277]2 years ago
7 0
What is nCn does it have a full form
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A horse travels 100 meters at a velocity of 30m/s W. How long does it take the horse to travel this distance?
Dafna1 [17]

The formula for finding time is the distance divided by the velocity.So the answer is 100÷30=3.3333...

6 0
3 years ago
The sum of two numbers is 97. One number is 1 more than twice the other number. Find the two numbers.​
guajiro [1.7K]

Answer:

The 2 numbers are 32 and 65.

Step-by-step explanation:

x + y = 97   where x and y are the 2 numbers.

x = 2y + 1

Substituting for x in the first equation:

2y + 1 + y = 97

3y = 96

y = 32.

So x = 2y + 1 = 64 + 1 = 65.

4 0
3 years ago
Jose has 1000$ in his savings account. it pays out 5% interest what is his balance after 1 year
NARA [144]

The most appropriate choice for simple interest will be given by- Balance of Jose after 1 year is $1050

What is simple interest?

Simple interest is the interest applied on the principal value after charging some certain percentage of rate for some certain amount of time.

If the principal value is p, rate is r % per annum and time is t years

Simple interest is calculated as

SI = p ₓ r ₓ t / 100

Here,

Principal for Jose = $1000

Rate = 5%

Time = 1 year

Simple interest = 1000x5x1/100

                         = $50

Amount = $(1000+50)

             = $1050

Balance of Jose after 1 year is $1050

To learn more about simple interest, refer to the link:
brainly.com/question/25793394
#SPJ10

5 0
1 year ago
99 pencils cost \$7.74$7.74dollar sign, 7, point, 74. Which equation would help determine the cost of 666 pencils? Choose 1 answ
balu736 [363]

Answer:

\large \boxed{\text{A) } \dfrac{6}{x} = \dfrac{9}{\$7.74}}

Step-by-step explanation:

9 pencils cost $7.74

6 pencils cost x

The ratios are  

\dfrac{9}{6} = \dfrac{\$7.74}{x}

According to the alternendo property,

\dfrac{9}{6} = \dfrac{\$7.74}{x} \Rightarrow \dfrac{9}{\$7.74} = \dfrac{6}{x}\\\\\text{The correct answer is $\large \boxed{\mathbf{ \dfrac{6}{x} = \dfrac{9}{\$7.74}}}$}

4 0
2 years ago
Consider the expression below.
Elena L [17]
Since 3 doesn’t have any term goes with it then 3 is a constant number. Hope this will help!
5 0
3 years ago
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