Answer:
Option D) B and C
Step-by-step explanation:
we know that
To find out the percentage of high school teachers that have a second job, divide the number of teachers that have a second job by the total number of teachers
<em>Survey A</em>
![\frac{28}{110}=0.2545](https://tex.z-dn.net/?f=%5Cfrac%7B28%7D%7B110%7D%3D0.2545)
Convert to percentage
![0.2545(100)=25.45\%](https://tex.z-dn.net/?f=0.2545%28100%29%3D25.45%5C%25)
<em>Survey B</em>
![\frac{27}{90}=0.3](https://tex.z-dn.net/?f=%5Cfrac%7B27%7D%7B90%7D%3D0.3)
Convert to percentage
![0.3(100)=30\%](https://tex.z-dn.net/?f=0.3%28100%29%3D30%5C%25)
<em>Survey C</em>
![\frac{21}{70}=0.3](https://tex.z-dn.net/?f=%5Cfrac%7B21%7D%7B70%7D%3D0.3)
Convert to percentage
![0.3(100)=30\%](https://tex.z-dn.net/?f=0.3%28100%29%3D30%5C%25)
<em>Survey D</em>
![\frac{32}{80}=0.4](https://tex.z-dn.net/?f=%5Cfrac%7B32%7D%7B80%7D%3D0.4)
Convert to percentage
![0.4(100)=40\%](https://tex.z-dn.net/?f=0.4%28100%29%3D40%5C%25)
Compare the percentages
Surveys B and C have the same percentage
therefore
Surveys B and C show proportional results, because the ratio of the number of teachers that have a second job by the total number of teachers is equal (this number is the constant of proportionality k in a proportional relationship between two variables)
Let us assume the first even number = n
The second consecutive even number = n + 2
The third consecutive even number = n + 4
The addition of the three consecutive even numbers is 42 and it is already given in the question. Based on the information's given in the question, the answer can be easily deduced.
Then, the equation can be written as
n + (n + 2) + (n + 4) = 42
3n + 6 = 42
3n = 42 - 6
3n = 36
n = 36/3
= 12
So
The first even number = 12
The second consecutive even number = n + 2
= 12 + 2
= 14
The third consecutive even number = n + 4
= 12 + 4
= 16
So the three consecutive even numbers are 12, 14, 16.
Answer:
2 circles :8 triangles
Step-by-step explanation:
just count the circles than the triangles
Answer:
60/1
Step-by-step explanation:
10÷1/6
⬇(change 10 into a fraction)
10/1÷1/6
⬇(change ÷ to ×)
10/1×1/6
⬇(reciprocal 1 and 6)
10/1×6/1
⬇
Answer=60/1 or just 60
Answer:
1/3
Step-by-step explanation: