MATHEMATICS HIGH SCHOOL

There are 312 fish at the aquarium in 3 different fish tanks. Each tank has the same number of fish. How many fish are in each tank? Write an equation to find the unknown. Then find the unknown.​

Answers

Answer 1
Answer:

Answer:

312 / 3 = x \n x = (312)/(3) \n x = (104)/(1) \n x = 104 fish \: in \: each \: tank

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Explain 7.32×3.95=....​
What does 678×25 equal​

Find the area of the figure. Round decimal answers to the nearest tenth.

Answers

The base is 8 and the height is 8.
8x8 = 64
64 divided by 2 is 32
The area is 32 ft squared

I got this answer by using the formula for finding the area of a triangle. Base x height divided by 2

One year consumers spent an average of $23 on a meal at a restaurant. Assume that the amount spent on a restaurant meal is normally distributed and that the standard deviation is $6. Complete parts​ (a) through​ (c) below.a. What is the probability that a randomly selected person spent more than $28?=0.2033
b. What is the probability that a randomly selected person spent between $9 and $21?=0.3608

Answers

The probabilities regarding a person spending are given as follows:

a) More than 28: 0.2033 = 20.33%.

b) Between 9 and 21: 0.3608 = 36.08%.

How to obtain probabilities using the normal distribution?

The z-score of a measure X of a variable that has mean symbolized by \mu and standard deviation symbolized by \sigma is obtained by the rule presented as follows:

Z = (X - \mu)/(\sigma)

  • The z-score represents how many standard deviations the measure X is above or below the mean of the distribution, depending if the obtained z-score is positive or negative.
  • Using the z-score table, the p-value associated with the calculated z-score is found, and it represents the percentile of the measure X in the distribution.

The mean and the standard deviation for this problem are given as follows:

\mu = 23, \sigma = 6

The probability of a person spending more than 28 is one subtracted by the p-value of Z when X = 28, hence:

Z = (28 - 23)/6

Z = 0.83

Z = 0.83 has a p-value of 0.7967.

1 - 0.7967 = 0.2033 = 20.33%.

The probability of spending between 9 and 21 is the p-value of Z when X = 21 subtracted by the p-value of Z when X = 9, hence:

Z = (21 - 23)/6

Z = -0.33

Z = -0.33 has a p-value of 0.3707.

Z = (9 - 23)/6

Z = -2.33

Z = -2.33 has a p-value of 0.0099.

Hence:

0.3707 - 0.0099 = 0.3608 = 36.08%.

More can be learned about the normal distribution at brainly.com/question/25800303

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What is the LCD between these fractions 4/9 and 2/3

Answers

The least common multiple that is divisible by both a and b is the smallest positive integer. The LCD between these two fractions 4/9 and 2/3 is 9.

What is LCM?

The least common multiple that is divisible by both a and b is the smallest positive integer, lowest common multiple, or smallest common multiple of two numbers a and b, generally indicated by LCM.

The LCD of two fractions is the LCM of the denominator of the fractions.

Since the denominator of the two fractions is 3 and 9. Therefore, the LCM of the two denominators are,

LCM = 9

Hence, the LCD between these two fractions 4/9 and 2/3 is 9.

Learn more about Least Common Multiple here:

brainly.com/question/20739723

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Answer: Least common denominator  = 9

Step-by-step explanation:

The LCD is the lowest multiple of the denominators

9 is a multiple of 1 × 9 or 3 × 3.  So since 3 is the denominator of 2/3,  9 is the LCD.

2/3 is equivalent to 6/9.  

Choose the value for which 2/a+8 is undefined

Answers

If the value is:

\sf{(2)/(a+8)}

Then it will be undefined when the denominator is equal to 0.

So set the denominator equal to 0

a + 8 = 0
a = -8

So when 

\huge{\boxed{\bf{a=-8}}}

then the value will be undefined.

Just a note:

\sf{(x)/(0)=} undefined

\sf{(0)/(x)=0}

HELP PLZZZZ like asap

Answers

Answer:

The answer is B

Step-by-step explanation:

✌

Answer:

B

Step-by-step explanation:

You can substitute the variables for the values!

7x = 21

3y = -6

2x = 6

y = -2

21 - (-6)

----------

6 + (-2)

27

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4

When simplifying an expression that contains no parentheses, you always multiply before you divide.True

or

False

Answers

Answer:

I think the answer is false I am not A 100%sure but most likely false

Step-by-step explanation:
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