Answer:
Step-by-step explanation:
-2x + 3y = 6.....(x, -4)...so y = -4
-2x + 3(-4) = 6
-2x - 12 = 6
-2x = 6 + 12
-2x = 18
x = -18/2
x = -9
so the value of x is -9.....(-9,-4)
You can work out the percentage change and that would help you work out the rate of appreciation :)
The formula is ((new value - old value)/old value) * 100.
So you do 
Therefore the rate of appreciation is 8% p/a.
Answer:
12
Step-by-step explanation:
The square root of 144 = 12.
12 x 12 = 144
Hope that helps!
Let n be the number 18=60% of n
18=0.6n
18/0.6=n
30=n
Answer:
3.5x+7
Step-by-step explanation:
divide your coeeficients by 4
