3 years ago

Need help plz i don't under stand it

Mathematics

2 answers:

guapka [62]3 years ago

6 0

Answer:

Me neither bro

Step-by-step explanation:

ValentinkaMS [17]3 years ago

4 0

Sorry to break it to you but I dont know have a good one though

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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:

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

3 0

3 years ago

7 1/4 + 5 3/5= reduced to its lowest form

Black_prince [1.1K]

7 1/4 + 5 3/5 = 12 17/20 You can't reduce it no more.

6 0

3 years ago

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Brian gave 1/4 of his stickers to Pete and 20 stickers to Lily. He then had 1/3 of his stickers left. How many stickers did he h

Oduvanchick [21]

Find a common denominator first.
P3/12. + 5/12
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48 stickers

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3 years ago

Chelsey wants to join a fitness club.

nadya68 [22]

Answer:

30 (I think you mistyped one of the answer choices)

Step-by-step explanation:

170+10=180

180÷6=30

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2 years ago

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What temperature is 15 degrees lower than 7 degrees celsius

VikaD [51]

7-15= -8
so -8 degrees celsius

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