Pyramids or prisms can have 7 or more vertices.
The probability as a fraction is 1/2
The probability as a decimal is 0.5
The probability as a percent is 50%
The distance formula is d=sqrt(x2-y2)^2+(x1-y1)^2. plug it in and get the answer
Hi there!
So, our two equations are:
2x + 3y = 20 and
-2x + y = 4
We can see that the x's will cancel out because they're the same number, opposite signs. Then we're left with 4y = 24.
Divide 24 by 4, which is 6.
y = 6, then we plug that in to the first equation for y:
2x + 3(6) = 20
2x + 18 = 20
2x = 2
x = 1
So, she made her first mistake when adding the equations, adding 20 and 4, she somehow got 16.
The solution to the system is (1,6).
I hope I helped!
