30 minutes is half of an hour so it would be 50%.
To find the decimal equivalent for 2/3, you simply divide 2 by 3.
![2 \div 3](https://tex.z-dn.net/?f=2%20%5Cdiv%203)
After dividing, the decimal equivalent will be about 0.6666666667
Answer:
1) Bigger sector = 168.8pi
1) Smaller sector = 56.3pi
2) Bigger sector = 529.9
3) Smaller sector = 176.6
Step-by-step explanation:
1) Bigger sector =
×pi×15×15
= 168.75pi
1) Smaller sector =
×pi×15×15
=
×pi×15×15
= 56.25pi
2) Bigger sector =
×3.14×15×15
= 529.875
2) Smaller sector =
×3.14×15×15
=
×3.14×15×15
= 176.625
Answer: 80 students
Step-by-step explanation:
x=%
12=15x
4=5x
100x= 80
Therefore, there are 80 students.