Answer:
Below in bold.
Step-by-step explanation:
3x + y = -1
2x + y=0
Subtract to eliminate y:
3x - 2x + y - y = -1 - 0
x = -1
So, substituting for x in the first equation;
3(-1) + y = -1
y - 3 = -1
y = 2.
The solution is the ordered pair (-1, 2).
The system is a pair of straight lines which intersect at the point (-1, 2).
Answer:
768
Step-by-step explanation:
a=3
r=2
t9=ar^n-1
=3×2^9-1
=3×2^8
=3×256
=768
2ab - 3a = a.(2b-3)
now the same thing
let's say n=1
a.(2b-3) + n.(2b-3) = (2b-3).(a+n)
Understood?
20 1/2? So, 20.5? If so, it's 21. If it's lower, it's just 20.
Answer:
₱ 59,800
Step-by-step explanation:
Multiply 52 to 1,150
1,150
x 52
------------
2300
+ 5750
-------------
59800