Answer:
165.8 meters
Step-by-step explanation:
i think so mate
Answer:
The number of teacher who joined the school is 20
Step-by-step explanation:
Teacher : Students = 1 : 16
Number of teachers = 1x
Number of students = 16x
16x = 1600
x = 1600/16
x = 100
Number of teachers at the beginning = 100
Now, after some teachers (let it be y) joining the school,
Teacher : students = 3:40
![\frac{100+y}{1600}=\frac{3}{40}\\\\40*(100+y)=3*1600\\\\4000+40y = 4800\\\\40y=4800-4000\\\\40y=800\\\\y=\frac{800}{40}\\\\y=20](https://tex.z-dn.net/?f=%5Cfrac%7B100%2By%7D%7B1600%7D%3D%5Cfrac%7B3%7D%7B40%7D%5C%5C%5C%5C40%2A%28100%2By%29%3D3%2A1600%5C%5C%5C%5C4000%2B40y%20%3D%204800%5C%5C%5C%5C40y%3D4800-4000%5C%5C%5C%5C40y%3D800%5C%5C%5C%5Cy%3D%5Cfrac%7B800%7D%7B40%7D%5C%5C%5C%5Cy%3D20)
The number of teacher who joined the school is 20
To find this answer, you would need to find 11% of 5,173 and subtract it. to find 11%, you would use the expression 5,173 x 0.11, which is 569.03, which we can round to 569. 5,173 - 569 = 4604. so last year, the population in that town was 4,604 people.
Solution
![(3x-5)^2=19](https://tex.z-dn.net/?f=%283x-5%29%5E2%3D19)
For this case we can take square root in both sides and we have:
![3x-5=\pm\sqrt[]{19}](https://tex.z-dn.net/?f=3x-5%3D%5Cpm%5Csqrt%5B%5D%7B19%7D)
And solving for x we got:
![x=\frac{5\pm\sqrt[]{19}}{3}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B5%5Cpm%5Csqrt%5B%5D%7B19%7D%7D%7B3%7D)
then the solutions for this case are:
B and E