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vladimir2022 [97]
3 years ago
11

3. 3(2x - 1) + 4 = 3 - 5(1 - x)​

Mathematics
2 answers:
yarga [219]3 years ago
8 0

Answer:

= -3

Step-by-step explanation:

Svetradugi [14.3K]3 years ago
4 0

Answer:

x = -3

Step-by-step explanation:

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The pipe fitting industry had 546.5 thousand jobs in 2015 and is expected to decline at an average rate of 3 thousand jobs per y
lesya692 [45]

Answer:

The amount of jobs from fitting industry shall decline in 5.5 percent from 2015 to 2025.

Step-by-step explanation:

Due to the assumption of a yearly average rate, a linear function model shall be used. The expected amount of jobs (n) after a certain amount of years (t) is given by the following formula:

n = n_{o} + \frac{\Delta n}{\Delta t}\cdot t

Where:

n_{o} - Initial amount of jobs in pipe fitting industry, measured in thousands.

\frac{\Delta n}{\Delta t} - Average yearly rate, measured in thousands per year. (A decline is indicated by a negative sign)

If n_{o} = 546.5, t = 2025-2015 = 10\,years and \frac{\Delta n}{\Delta t} = -3\,\frac{1}{years}, then:

n = 546.5+\left(-3\,\frac{1}{year}\right)\cdot (10\,years)

n = 516.5

The percent change in jobs from pipe fitting industry is calculated as follows:

\%n = \left(1-\frac{n}{n_{o}}\right)\times 100\,\%

\% n = \left(1-\frac{516.5}{546.5}\right)\times 100\,\%

\%n = 5.5\,\%

The amount of jobs from fitting industry shall decline in 5.5 percent from 2015 to 2025.

4 0
3 years ago
Solve the inequality. -45<-9k would the answer be 5>k or 5
Mashutka [201]

Answer:

5 > k

Step-by-step explanation:

-45 < -9k

Switch sides

-9k > -45

Multiply both sides by -1 (reverse the inequality)

( -9k )( -1 ) < ( -45 )( -1 )

Simplify

9k < 45

Divide both sides by 9

9k/9 < 45/9

Simplify

K < 5


8 0
3 years ago
13.24503311258278 Round to the nearest tenth as needed
Ksenya-84 [330]

The number provided rounded to the nearest tenth is 13.2.

Because the number in the hundreds place is a 4, we round down and keep the tenth at 2.

7 0
3 years ago
What is 5/8+2/5 in its simplest form (thanks to all the people who helped me before with the rest of the problems I just posted
Sedbober [7]
The answer is 1 1/40 because u have to change the Denominator
3 0
3 years ago
Use the model to solve for x. A) x = 2 B) x = 4 C) x = 8 D) x = 12
____ [38]

Answer:

A) x = 2

Step-by-step explanation:

I am not sure but I think this means...

2x + 5 = 3x - 3

5 = 3x - 3 + 2x

5 + 3 = 3x + 2x

8 = 5x

8/5 or 1.6 = x

5 0
2 years ago
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