Looking at this, I think the easiest (personally) way to solve it would be using the Substitution method.
Meaning we have to rearrange ONE equation, to make ONE variable ( x or y) the subject.
(1) 2.5x + y = -2
(2) 3x +2y = 0
The first equation is the easiest to rearrange. Make Y the subject for (1).
Thus,
y = -2.5x - 2
Substitute this into equation (2).
∴ 3x + 2(-2.5x - 2) = 0
Expand and simplify:
3x - 5x - 4 = 0
∴ -2x - 4 = 0
Making x the subject:
-2x = 4
x = -2
From here, we need to substitute x=-2 into equation (1) or (2) to solve for the y-value. I would say the easiest way, would be to rearrange one, to make y the subject, which was what we did earlier.
Thus,
y = -2.5x - 2
y = ((-2.5(-2) -2)
y = 3
(X,Y) x = -2, y = 3
Answer: (-2,3)
I hope you followed through.
Answer:
C
Explanation:
the answer you have is correct (:
<u>Answer:</u>
Option D. It's important to recognise children when they follow the rules because not doing so can cause them to act out to receive adult attention.
<u>Explanation:</u>
Every human being regardless of his age, expects validation and acceptance from the surrounding in which he lives, children aren’t an exception from the list.
It is most important to recognise the actions of the children when they follow the rules as doing so would encourage them to do the same action when they encounter the same situation in the future and helps in increasing the child’s self image, self esteem and emerging as a self regulating child.
In the case of not recognising the actions would lead to a situation where the children would start breaking the rules, just in order to grab your attention and this would continue in a cyclic manner if it is not treated effectively by the adults which will eventually lead to behavioural problems.
Hence the right answer is, Option D.
