Answer:
<h2>400</h2>
Step-by-step explanation:

For this case we must solve the following system of equations:

To solve we follow the steps below:
We multiply the second equation by -3:

Thus, we have the equivalent system:

We add the equations:

We look for the value of the variable "y":

Thus, the solution of the system is given by:

Answer:

Answer: 0
Explanation:
-1/2n -(-1/2n)
= -1/2n + 1/2n
= 0
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 (
) after a certain amount of years (t) is given by the following formula:

Where:
- Initial amount of jobs in pipe fitting industry, measured in thousands.
- Average yearly rate, measured in thousands per year. (A decline is indicated by a negative sign)
If
,
and
, then:


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



The amount of jobs from fitting industry shall decline in 5.5 percent from 2015 to 2025.
Answer:
547 & 544
Step-by-step explanation:
when you round 552 to the nearest 10 its 550 and 544 would be 540.
when rounded to the nearest hundred 552 would be 600 & 544 would be 500.
(could be wrong)