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inn [45]
3 years ago
10

Whats 2.3

Mathematics
1 answer:
vfiekz [6]3 years ago
5 0

Answer:

\frac{7}{3}

Step-by-step explanation:

We require 2 equations with the repeating decimal after the decimal points.

let x = 2.3333... → (1) ← multiply both sides by 10

10x = 23.333..... → (2)

Subtract (1) from (2), thus eliminating the repeating decimal

9x = 21 ( divide both sides by 9 )

x = \frac{21}{9} = \frac{7}{3}

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4 0
3 years ago
How to calculate standard deviation given mean and sample size?
ad-work [718]
In addition to mean and sample size you will need the individual scores.

The formula for standard deviation is:

S^2 = E(X-M)^2/N-1

Here's an example: 
Data set: 4,4,3,1
Mean: 3
Sample size: 4

First, put the individual scores one after the other and subtract the mean from it.
4 - 3 = 1
4 - 3 = 1
3 - 3 = 0
1 - 3 = -2

Second, square the answers you got from step 1. 
1^2 = 1
1^2 = 1
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Third, plug the values from step 2 into the formula. 

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3 0
3 years ago
What is the answer to my problem
Nadya [2.5K]
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7 0
2 years ago
The side of a square is 2X unites. Select the expression that represents the area
Aneli [31]

Answer:

6x x 6x

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4 0
3 years ago
A seamstress needs to cut 15-inch pieces of ribbon from a roll of ribbon that is 9 feet length. What is the greatest number of 1
yan [13]
STEP 1:
Divide the length of the ribbon by the size of the pieces.

12 inches= 1 foot

= 9 ft ÷ 15 inch pieces
convert ft to inches
= (12)(9) ÷ 15
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STEP 2:
multiply the number of pieces that can be cut from one roll by the number of rolls

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ANSWER: The greatest number of 15-inch pieces that can be cut from five 9-foot rolls is 36.

Hope this helps! :)
4 0
3 years ago
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