Answer:
The correct option is B
Step-by-step explanation:
First step we should build an equation´s system with the two equations
300x-y=130
200x+y=120
Now we clear "y" from one of the equations, i choose the first one
y= 300x-130, and replace it in the second one
200x + (300x-130)=120 ⇒ 200x+300x-130=120
500x=120+130 ⇒ 500x=250 ⇒ x=[tex]\frac{250}{500}[/tex]
x=0.5
Final step we replace that value in some of the equations
y= 300*(0.5) - 130
y= 150-130 ⇒ y=20
So in conclusion we have found the point (0.5,20)
