We can use the substitution method to solve this problem.
The second equation is

, so we can plug in 2x for 'y' in the first equation:


Multiply:

Combine like terms:

This is the x-value of our solution, we can plug this into any of the two equations to find the y-value:


Multiply:

This is the y-value of our solution. So our entire solution is (3, 6).
Answer:
0.75 represents the weight.
Step-by-step explanation:
In the expression it said that W is the weight so 0.75 in the weight.
Domain: [-∞, ∞]
Range: [-9, ∞]
Answer : 300
30% of 1000 is 300