20 chaperones are needed
The answer is 20.
120 / 12 = 10
This means that there are 10 sets of 12 students. Now multiply 10 by 2:
10 * 2 = 20
Good luck!
Volume of cylinder = πr^2 × h
= π × (5/2)^2 × 13
= 255.25 yd^3
So, what we do here is divide 70 / 6.5
70 / 6.5 = 10.7692308 (approximately). Then, multiply this number by 8
10.7692308 x 8 = 86.15 (approximately). So, C. 86.15 is the correct answer!
Answer:
3.25
Step-by-step explanation:
2 + d = 2 - 3 (d - 5) -2
d= -3d+15-2
4d=13
d= 13/4= 3.25
