12 boys. 7 * 3 is 21. 21 girls. 4*3 is 12. 12 boys 21 girls
16: B; irrational number, real
17: C; whole, integer, rational, real
18: B; real, rational, integer
Answer: 80°
Step-by-Step Explanation:
By Angle Sum Property of a Triangle, all angles in a Triangle add up to 180°
Finding the Value of ‘x’ :-
2x + 3x + 4x = 180
5x + 4x = 180
9x = 180
x = 180/9
=> x = 20
Finding each Angle :-
2x = 2(20) = 2 * 20 = 40°
3x = 3(20) = 3 * 20 = 60°
4x = 4(20) = 4 * 20 = 80°
Hence, the Largest Angle is 80°
I got 4x if that isn’t right I will check again
