Another way of writing it is in expanded notation
Since there are 50 stars, it would be 50 as 2500 divided by 50 is 50
The equation of a circle
defines a circle centred at (xc,yc) with radius r.
So with (xc,yc)=(0,3), and r=4
the equation becomes
Answer:
The solution is (0, 4)
Step-by-step explanation:
Please pay attention to the first two equations and drop the last two:
12x−5y=−20 y=x+4 x=x=x, equals y=y=y should ideally be:
12x−5y=−20
y=x+4
Let's find x. Substitute x + 4 for y in the first equation, obtaining:
12x - 5(x + 4) = -20
Carrying out the indicated multiplication, we get:
12x - 5x - 20 = -20, or 7x = 0
If x = 0 then y must be 0 + 4, or 4.
The solution is (0, 4)