Answer:
The correct answer is -3 and 2/3.
Step-by-step explanation:
Contants is defined as the values which can not be changed.
In this expression -3 and 2/3 are such values that can not be changed.
So -3 and 2/3 are constants in this expression.
So basically you want to find the cost per day. So you have 5 days, so divide £100 by 5.
You get £20 per day
Now, the cost per child. We have 80 children so it would be £20/80 children per day.
Our answer is £0.25 per child per day.
Answer:
![A=1347.7\ cm^2](https://tex.z-dn.net/?f=A%3D1347.7%5C%20cm%5E2)
Step-by-step explanation:
Given that,
Radius of a cone, r = 13 cm
Slant height of the cone, l = 20 cm
We need to find the surface area of the cone. The formula for the surface area of the cone is given by :
![A=\pi rl +\pi r^2](https://tex.z-dn.net/?f=A%3D%5Cpi%20rl%20%2B%5Cpi%20r%5E2)
Put all the values,
![A=\pi r(l + r)\\\\A=\pi \times 13(20 + 13)\\\\A=1347.7\ cm^2](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%28l%20%2B%20r%29%5C%5C%5C%5CA%3D%5Cpi%20%5Ctimes%2013%2820%20%2B%2013%29%5C%5C%5C%5CA%3D1347.7%5C%20cm%5E2)
So, the surface area of the cone is
.
Toby should choose Project B because since there are equal number of the four colors of beads, you simply divide the total number of beads by four to get the number of one color of bead(re. green). 1020/4 = 255. Since Toby wants to use the project that uses an amount of beads under 260, Project B is the right choice.