Answer:
and 
Step-by-step explanation:
Given:
Equation 1:

Simplifying the above equation by dividing both sides by 100


Equation 2:

Simplifying the above equation by dividing both sides by 400.


Now the system of equation is:
(1a) 
(2a) 
Solving by elimination
Multiplying equation (2a) with 

(2b) 
Adding equations (1a) and (2b) in order to eliminate 

+ 
We get 
∴ 
Plugging
in equation (2a).

Adding
both sides.

∴ 
Answer:
2X x 3 = 1y x 2
3x = y
6x = 2y
Step-by-step explanation:
probably right / probably wrong
I’m in middle school so if u show me I’ll be able to help I’m one of those people
Answer:
The answer is 9.
Step-by-step explanation:
m = 5
n = 4
m + n
(5) + (4) = 9
Answer:
It will take them a total of 18 days because if it took them 9 days to make 90 multiply that by 2 to get 180 and you get the answer.
Step-by-step explanation:
9 = 90
9 x 2 = 18
90 x 2 = 180
you make 180 suits in 18 days