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posledela
3 years ago
5

2(x-1)+3x=3 Distributive property

Mathematics
2 answers:
RoseWind [281]3 years ago
8 0
X=1 its easy just distribute the 2 into it combine like terms and solve for x
Allisa [31]3 years ago
3 0

Answer:

x = 1

Step-by-step explanation:

Firstly we distribute: 2x - 2 + 3x = 3

Collect like terms: 5x - 2 + 3

Then add 2 to both sided to isolate 5x: 5x = 5

Divide both sides by 5: x = 1

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Multiple choice please answer please
faust18 [17]

Answer:

15/17

Step-by-step explanation:

3 0
3 years ago
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A score that is three standard deviations above the mean would have a z score of
tia_tia [17]

The value of z-score for a score that is three standard deviations above the mean is 3.

In this question,

A z-score measures exactly how many standard deviations a data point is above or below the mean. It allows us to calculate the probability of a score occurring within our normal distribution and enables us to compare two scores that are from different normal distributions.

Let x be the score

let μ be the mean and

let σ be the standard deviations

Now, x =  μ + 3σ

The formula of z-score is

z_{score} = \frac{x-\mu}{\sigma}

⇒ z_{score} = \frac{\mu + 3\sigma -\mu}{\sigma}

⇒ z_{score} = \frac{ 3\sigma }{\sigma}

⇒ z_{score} = 3

Hence we can conclude that the value of z-score for a score that is three standard deviations above the mean is 3.

Learn more about z-score here

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6 0
2 years ago
4th grade conversions please help!!
MAVERICK [17]
6 inches of yarn make 1 bracelet.

5 feet of yarn make how many bracelets?

1 foot = 12 inches
5 feet = 12 * 5 inches = 60 inches

6 inches of yarn make 1 bracelet
60 inches of yarn make x bracelets

6/1 = 60/x

Cross multiply

6x = 60

x = 10

60 inches yarn make 10 bracelets.
6 0
3 years ago
Read 2 more answers
What is the verbal phrase for the following expression? 5n
Ivanshal [37]
I believe it is 5xn
4 0
3 years ago
Read 2 more answers
One side of a right triangle has a length of 24 centimeters. What could be the lengths of the other two sides of the right trian
Zanzabum

Answer:

A. 7 centimetres and 25 centimetres

Step-by-step explanation:

To see if the lengths make a triangle, use the Pythagorean theorem. Insert the biggest value as c (the hypotenuse, which is always the longest side in a right triangle). If both sides equal each other, it is a right triangle:

a^2+b^2=c^2

A.

24^2+7^2=25^2\\\\576+49=625\\\\625=625

This is a right triangle.

B.

23^2+8^2=24^2\\\\529+64=576\\\\593\neq 576

Not a right triangle.

C.

9^2+22^2=24^2\\\\81+484=576\\\\565\neq 576

Not a right triangle.

D.

24^2+10^2=27^2\\\\576+100=729\\\\676\neq 729

Not a right triangle.

Done :D

5 0
3 years ago
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