14 cups of flour is needed to make 36 rolls. I think it is
sin(45°) = (2/4) = (1/2) = sqrt{1/2} = sqrt{1}/sqrt{2} = 1/sqrt{2}.
Answer: 1/sqrt{2}
Let's solve by eliminating
x
. Since 18 is the lowest common multiple , let's multiply the first equation by 3 and the second by -2.
Add the two equations.
Divide by -11 to isolate
y
y= -2
Substitute
y
=
−
2
into either of the 2 equations, I'll just use the second one.
x = -1
