75% of the teachers were first-year teachers
Step-by-step explanation:
the formula for percentage will be used for the problem
The percentage is given by:
![Percentage=\frac{Quantity}{Total}*100\\](https://tex.z-dn.net/?f=Percentage%3D%5Cfrac%7BQuantity%7D%7BTotal%7D%2A100%5C%5C)
Here
Total teachers = 57+19 = 76
First-year teachers = 57
So,
![Percentage\ of\ first\ year\ teacher = \frac{57}{76}*100\\=0.75*100\\=75\%](https://tex.z-dn.net/?f=Percentage%5C%20of%5C%20first%5C%20year%5C%20teacher%20%3D%20%5Cfrac%7B57%7D%7B76%7D%2A100%5C%5C%3D0.75%2A100%5C%5C%3D75%5C%25)
Hence, 75% of the teachers were first-year teachers
Keywords: Percentage, Percent
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Answer:
7560.766
Step-by-step explanation:
The equation for the volume of a right cone is
.
r = radius = 38/2 = 19cm
h = height = 20cm
Therefore:
![V=\frac{1}{3}\pi (19)^{2}(20)=7560.766](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B1%7D%7B3%7D%5Cpi%20%2819%29%5E%7B2%7D%2820%29%3D7560.766)
The circumference in feet would be 144 feet
Answer: 2.7 hours
Step-by-step explanation:
Hi, to answer this question we simply have to calculate the amount of time that takes making one batch of dinner rolls, by adding the individual times of, kneading, resting and baking.
Mathematically speaking
0.7 hours +1.6 hours +0.4 hours = 2.7 hours
It takes 2.7 hours to make each batch of dinner rolls.