Answer:
5x + y = 3/8
Step-by-step explanation:
Add to both sides
+ y = 3
Divide both sides by 8
5x + y = 3/8
2(4x+3)=2(3x+7)+4x what does x =
1 answer:
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Given that the quantity demanded for a certain brand of portable CD players is 200 units when the unit price is set at $90.
If we set quantity=y and price=x then in point form, we can write above information as (90,200)
Similarly "The quantity demanded for 1,200 units when the unit price is set at $40. " can be written as (40,1200)
Now we can plug both points into two point formula to find the required equation:
plug those points
y-1200=-20(x-40)
y-1200=-20x+800
y=-20x+2000
Hence demand equation is y=-20x+2000