1. there are two methods to solve this system
I.substition
from the first relation we can deduct
2a-b=4
2a=4+b
a=(4+b)/2
now we substitute a in the second relation
(4+b)/2+b=5
we multiply by 2
4+b+2b=10
3b=6
b=6/3=2
a+2=5
a=3
II.reduction
2a-b=4
a+b=5
we can add the two relations together
2a+a-b+b=4+5
3a=9
a=3
3+b=5
b=2
The change is 3/25 which is 12%. A phrase is not probable or unlikely.
Answer:
The answer would simply be m = (8 + 3n)/4
Step-by-step explanation:
If you look at the question closely, you have two variables, and you have not been given the value for any of them, so we have to solve this algebraicly.
First, we need to get m on one side, and so we add 3n to both sides to get rid of it.(We should have 4m = 8 + 3n)
Next, we need to isolate m, we need to get it alone, by itself to get the answer, so we divide by 4 on both sides.
The expression on the right side(8 + 3n) has to be divided by 4 fully, and so your answer would simply be m = (8 + 3n)/4.
If you need more confirmation, plug in the whole expression into the given expression to check your answer.
Answer:
not a regular polygon
Step-by-step explanation:
A regular polygon is an n-sided polygon in which the sides are all the same length and are symmetrically placed about a common center
