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Rina8888 [55]
3 years ago
6

Help I have no clue please I just don't get it

Mathematics
2 answers:
ivolga24 [154]3 years ago
7 0
Just do 30 divided by 7 and put 7 as the denominator on top of the remainder
Korolek [52]3 years ago
6 0
Divide the numerator by the denominator. So that would be 30/7 = 4 ( but you still have 2 as a remainder) now whatever is left write as a fraction so the answer to your question is 4 2/7.
Hope that helps :)
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Translate and solve: 3x less than 2 times the sum of 2x and 1 is equal to the sum of 2 and 5. X=
Sauron [17]

Answer:

3 x = 2 = 2 x = 1 = 2 = 5 X =

Step-by-step explanation:

Use the given functions to set up and simplify

5X.

im pretty sure this is right, butt if its not im sorry <3

6 0
3 years ago
In a large population of adults, the mean IQ is 112 with a standard deviation of 20. Suppose 200 adults are randomly selected fo
Snezhnost [94]

Answer:

(c)approximately Normal, mean 112, standard deviation 1.414.

Step-by-step explanation:

To solve this problem, we have to understand the Central Limit Theorem

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

In this problem, we have that:

\mu = 112, \sigma = 20, n = 200

Using the Central Limit Theorem

The distribution of the sample mean IQ is approximately Normal.

With mean 112

With standard deviation s = \frac{20}{\sqrt{200}} = 1.414

So the correct answer is:

(c)approximately Normal, mean 112, standard deviation 1.414.

4 0
3 years ago
1 4/7 <br>_______<br>- 15/ 21​
Sati [7]

Answer: -11/5

Step-by-step explanation:

\frac{11}{7}÷\frac{-15}{21}

-\frac{11}{7}× \frac{21}{15}

-11×\frac{3}{15}

-11 × \frac{1}{5}

3 0
3 years ago
A potted tree weighs 21 pounds. The pot weighs 3 pounds. If w represents the weight of the tree without the pot, write an equati
masha68 [24]
W = 21 - 3
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8 0
3 years ago
If x=9 and y=- -2 evaluate the following expression:<br><br> x+y
mel-nik [20]

Answer:

x + y = 11

Step-by-step explanation:

You would need to substitute the numbers into the expression.

Evaluate means that we need to work out what the answer would be.

x + y is equivalent to 9 - - 2.

- - is equivalent to +.

Therefore you would do 9 + 2, which equals 11.

Hope this helps :)

4 0
3 years ago
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