Answer:
x = s, y = t, z = 8 -s -t
Step-by-step explanation:
It can work reasonably well to let s and t represent any of a pair of the variables. In the answer above, we have used x=s, y=t.
You could get more elaborate if you want:
x = 4-s, y = 4-t, z = s+t
aWht is this .??????????????
When y = 2, x = 8.
This can be written as: 2/8.
Simplified: 1/4
True
4r to the power of 2 - 3r +1
8 /8 =1
44/8=5,5
so the ratio is 1:5,5
For the first one it is 5 x10^{8}
and for the second one it is 0.0005 = 5 × 0.0001 = 5 × 10−4