Answer with explanation:
Presume that, initial water level to be, 0 mm, at a time t=0.
And water level is rising at the rate of .
After 6.2 years level of water will be =1.8 × 6.2
=11.16 mm
→Averge, that is increase in water level after 6.2 years is given by
→→Rate of Depreciating of water level is given by = Negative of Increase of water level=
Answer:
The coordinates are x = -1 and y = -2.
Step-by-step explanation:
Given:
Equations are 2x-4y=6 and 3x+y=-5.
Now, to find the coordinates.
...........(1)
...........(2)
So, first we solve the equation 1 to get the value of .
Subtracting both sides by we get:
Dividing both sides by 2 we get:
Now, we put the value of in equation 2 to get
.
On solving the whole equation we get :
And, now putting the value of in equation (1) we get
:
on solving we get:
Therefore, the coordinates are x=-1 and y=-2.