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lesantik [10]
3 years ago
6

How to I solve three times a number, increased by 2 in the algebraic expression

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
3 0

3 times a number would be 3N

than increased by 2 means add 2

 so the equation would be 3N+2 =

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The answer is 15.525. All you have to do is divide 279.45 by 18 which gives you 15.525.
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Pls find 5he area of each rectangle thxs
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(7 cm)*(10 cm) = 70 cm^2

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Find two integers whose sum is -20 and product is 99
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Answer:

Step-by-step explanation:

let the integers be x and y

x+y=-20

y=-20-x

xy=99

x(-20-x)=99

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Three students want to estimate the mean word length of the same book. To do this, each student randomly chose 4 words from the
Firlakuza [10]

The solutions to the questions are given below

a)

sample(n) word length sample mean

1                    5,4,4,2    3.75

2                    3,2,3,6     3.5

3                         5,6,3,3    4.25


b)R =0.75

c)

  • The mean of the sample means will tend to be a better estimate than a single sample mean.
  • The closer the range of the sample means is to 0, the more confident they can be in their estimate.

<h3>What is the students are going to use the sample means to estimate the mean word length in the book.?</h3>

The table below shows sample means in the table.

sample(n) word length sample mean

1                    5,4,4,2    3.75

2                    3,2,3,6     3.5

3                         5,6,3,3    4.25

b)

Generally, the equation for is  mathematically given as

variation in the sample means

R =maximum -minimum

R=4.25-3.5

R =0.75

c)

In conclusion, In most cases, the mean of many samples will provide a more accurate estimate than the mean of a single sample.

They may have a higher level of confidence in their estimate if the range of the sample means is closer to 0 than it is now.

Read more about probability

brainly.com/question/795909

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In 3 hours, a car travels 120 miles. What is the speed of the car
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40 miles an hour and yeah..
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