10% of 140 is 14.
to solve you first must do 10/100 = 14/x
cross multiply and you get 10x = 1400
divide 1400 by 10 and you get 140
X = total amount of people
80% of x = 540
.8x = 540
x = 675
There were 675 people
You find the circumference and multiply it by the central angle. If the central angle is in degrees, you divide that by 360. If the central angle is in radians, you divide by 2pi.
Answer:
2. x+0.3x
Step-by-step explanation:
hope this helps
