Answer:
x = 11
Step-by-step explanation:
6x - 21 = 3x + 12
6x - 3x = 21 + 12
3x = 33
x = 33/3
x = 11
Answer:
A ~ 34.63201
Step-by-step explanation:
Answer:
It is proportional
Step-by-step explanation:
Answer:
(a) 495, (b) 210
Step-by-step explanation:
Total number of persons = 12
number of openings = 8
number of women = 7
number of men = 12 - 7 = 5
(a) Number of ways to select the 8 persons

(b) Three are men
So, 3 men and 5 women
The number of ways are

7x4=28 , and 28/2= 14. the area of the triangle is a. 14m^2