I got 78.66, is there an answer choice like that?
In mathematics, a triangle group is a group that can be realized geometrically by sequences of reflections across the sides of a triangle. The triangle can be an ordinary Euclidean triangle, a triangle on the sphere, or a hyperbolic triangle. Each triangle group is the symmetry group of a tiling of the Euclidean plane, the sphere, or the hyperbolic plane by congruent triangles, a fundamental domain for the action, called a Möbius triangle.
Your answer is probably:
22
Answer:
49
Step-by-step explanation:
This is because 49 is below 50 but above 40. The number must also round to 0 from the nearest 100, so any value 50 and above will round to 100 and any value 49 and below will round to 0. So we are left with the values 40-49 because any value below 40 is rounded to either 40,30,20,10 or 0. Since any value below 45 won't round to 50, any value between 45 and 49 will work.
Ok im not sure the answer yet so ima work on it at the same time while im explaining it. (The answer will probably be near the end)
We can use the elimination method to eliminate y out. To do that we multiply the first equation by 3.
6x+3y=-12
Now just subtract it from the other equation.
6x+3y=-12
5x+3y=-6
***x=-6***
Usually after doing the elimination method you will have to solve for x but in this case its already solved for you. If you want to find y now you just take the first equation and fill x with -6 and solve for y.
2(-6)+y=-4
-12+y=-4
y=8
Brainliest my answer if it helps you out?