What is 5 2/3 divided by -1 2/15 pls help and hurry ❤️❤️

1 answer:

8 0

-5 because when turned into an irrational number it is 17/3 divided by -17/5. then you do keep change flip so it becomes 17/3 x -15/17. it equals -255/51 which simplifies to -5

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In a small chess tournament, 20 matches were played. Find out how many people were involved if it is known that each participant

Nina [5.8K]

Answer:

5 players participated in the tournament.

Step-by-step explanation:

In a small chess tournament, 20 matches were played.

Let us assume that n number of players participated in the tournament

As in each game 2 players play, so the number of ways they can play is,

$=\ ^nC_2$

As they played 2 games with every other participant in the tournament.

So the total number of games is,

$=\ 2\times ^nC_2$

But it is given to be 20, so

$\Rightarrow \ 2\times ^nC_2=20$

$\Rightarrow \ ^nC_2=10$

$\Rightarrow \dfrac{n!}{2!(n-2)!}=10$

$\Rightarrow \dfrac{n(n-1)}{2}=10$

$\Rightarrow {n(n-1)=20$

As $5\times 4=20$ , so we get n=5.

Therefore, 5 players participated in the tournament.

5 0

3 years ago

Read 2 more answers

When Angela calculated her net worth; she got this: Net Worth = $435 - $560 = - $125. What does her negative net worth mean?

Tcecarenko [31]

Answer:

The negative net worth mean her liabilities are larger than her assets.

Step-by-step explanation:

Angela's calculation of net worth:

Net Worth = $435 - $560 = - $125

Net worth is the difference in assets and debt. If the net worth is negative it means that debt is greater than assets.
The same thing is in Angela's case. Her debt or liability is greater than total assets hence making her net worth negative.
Her liability is still $125 greater than all of her assets added upon.

6 0

3 years ago

HELPPPP

fredd [130]

Not sure if this is correct but:

Step-by-step explanation: P = 2000

R = 5% = 0.05

n = 4

y = 2000 ( 1 + $\frac{0.05}{4}$ ) $^{4t}$ = 2000 ( 1.0125 )