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3 years ago

The number of fish in a lake decreased by 25% between last year and this year.

Mathematics

2 answers:

BlackZzzverrR [31]3 years ago

6 0

Answer:

Step-by-step explanation:

45 is the answer for the question

marshall27 [118]3 years ago

4 0

Answer:

Step-by-step explanation:

We take 60 fishes as 100% for last year. This year, the fish decreased by 25%, so the percentage of fish left this year is 75% of the fishes last year.

Therefore, to find 75% of the fishes, we take

60 divided by 100 (100%) and multiply it by 75( 75%) to get 45.

hope u find this helpful!

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Tanya prepared 4 different letters to be sent to 4 different addresses. For each letter, she prepared an envelope with its corre

Ad libitum [116K]

Answer:

1/3 is the answer.

Step-by-step explanation:

Tanya prepared 4 different letters to be sent to 4 different addresses.

To solve this we can do the following:

The probability that the 1st letter is in the right envelope is = $\frac{1}{4}$

The probability that the 2nd letter is in the wrong envelope is = $\frac{2}{3}$

The probability that the 3rd letter is in the wrong envelope is = $\frac{1}{2}$

The probability that the 4th letter is in the wrong envelope is = 1

So, the answer becomes: $\frac{1}{4}\times \frac{2}{3}\times \frac{1}{2}\times1$ = $\frac{1}{12}$

As we need 4 correct letters in the envelope, we will multiply by 4:

$\frac{1}{12}\times4=\frac{1}{3}$

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3 years ago

80 of ___games is 32 games

kotykmax [81]

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6 0

2 years ago

Solve for y if : x=3 y= 5x+8

MariettaO [177]

Plug in 3 into the equation.

y= 5(3) +8

Combine like terms.

y= 15+ 8

y= 23

I hope this helped!

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3 years ago

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mr Goodwill [35]

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