Answer:
x = -2
Step-by-step explanation:
Picture attached, shows a weighing scale in the balanced form,
So weight of elements on the left = Weight of the elements on the right
Left side of the scale = weight of x + weight of 1
= x(2) + 1(6)
= 2x + 6
On the right side of the scale = Weight of (-x) + weight of (-1)
= (-x)(2) + (-1)(2)
= -2x - 2
Since, both the sides are balanced,
Therefore, equation which models the situation is,
(2x + 6) = -(2x + 2)
(2x + 6) + (2x + 2) = 0
4x + 8 = 0
4x = -8
x = -2
Answer:
First of all, idk where the experts are, but i might know the answer.
Step-by-step explanation: (2,9)
Since it’s linear, find 3 points
(0,0), (2,8), (3,12)
Plot these points and draw a line through them.
Answer:
3 question papers
Step-by-step explanation:
If the teacher takes 15 minutes to mark 1 question paper. Then they will probably take 30 minutes to grade 2 question paper. Because 15 minutes+15 minutes=30 minutes. Then if you and another 15 minutes which will be 40 minutes because 15 minutes+15 minutes+15 minutes=40 minutes.
Hence, the teacher will mark 3 question papers in 40 minutes
