Answer:
80 students
Step-by-step explanation:
Given that,
Total number of students in 5th grade = 120
Two-thirds of the 5th graders are wearing sneakers today.
Let there are x graders wearing sneakers today.
![x=120\times \dfrac{2}{3}\\\\=80](https://tex.z-dn.net/?f=x%3D120%5Ctimes%20%5Cdfrac%7B2%7D%7B3%7D%5C%5C%5C%5C%3D80)
Hence, 80 students are wearing sneakers today.
Answer and working out attached below. Hope it helps
You already have the correct answer. Is there more to the problem?
Given:
Equation of a circle
![(x+4)^2+y^2=7](https://tex.z-dn.net/?f=%28x%2B4%29%5E2%2By%5E2%3D7)
Required:
Find the center and radius of the circle. Then graph of circle.
Explanation:
We have a standard equation of circle
![(x-h)^2+(y-k)^2=r^2](https://tex.z-dn.net/?f=%28x-h%29%5E2%2B%28y-k%29%5E2%3Dr%5E2)
Whose radius is (h, k) and radius r.
We have equation of a circle
![(x+4)^2+y^2=7](https://tex.z-dn.net/?f=%28x%2B4%29%5E2%2By%5E2%3D7)
Now, we will compare with standard equation of a circle
![We\text{ will get center\lparen-4, 0\rparen and radius }\sqrt{7}.](https://tex.z-dn.net/?f=We%5Ctext%7B%20will%20get%20center%5Clparen-4%2C%200%5Crparen%20and%20radius%20%7D%5Csqrt%7B7%7D.)
Graph of circle is
Answer:
Hence, this is the answer.