Answer:
Cartilaginous joints
Step-by-step explanation:
contain cartilage and allow very little movement; there are two types of cartilaginous joints
It is given in the statement that the increase in number of scones is same from Robbie till Charlie.
Let us assume that Robbie buy x scones and every boy buys y more scones than the previous ones.
The number of scones for each of the boy can be written as:
Robbie = x
Cameron = x + y
Louis = x + 2y
Tom = x + 3y
Charlie = x + 4y
Total number of scones = 60
So,
![x + (x+y) + (x+2y) + (x+3y) + (x+4y) = 60 \\ 5x+10y=60 \\ 5(x+2y)=60 \\ x+2y=12 \\ x=12-2y](https://tex.z-dn.net/?f=x%20%2B%20%28x%2By%29%20%2B%20%28x%2B2y%29%20%2B%20%28x%2B3y%29%20%2B%20%20%28x%2B4y%29%20%3D%2060%20%5C%5C%205x%2B10y%3D60%20%5C%5C%205%28x%2B2y%29%3D60%20%5C%5C%20x%2B2y%3D12%20%5C%5C%20x%3D12-2y)
Robbie and Cameron's combined total number of scones is three sevenths of the total of Louis, Tom and Charlie. Mathematically this can be stated as:
![x+(x+y)= \frac{3}{7}(x+2y+x+3y+x+4y) \\ 2x+y= \frac{3}{7}(3x+9y) \\ 14x+7y=9x+27y \\ 14x-9x=27y-7y \\ 5x=20y \\ x=4y](https://tex.z-dn.net/?f=x%2B%28x%2By%29%3D%20%5Cfrac%7B3%7D%7B7%7D%28x%2B2y%2Bx%2B3y%2Bx%2B4y%29%20%5C%5C%202x%2By%3D%20%5Cfrac%7B3%7D%7B7%7D%283x%2B9y%29%20%5C%5C%2014x%2B7y%3D9x%2B27y%20%5C%5C%2014x-9x%3D27y-7y%20%5C%5C%205x%3D20y%20%5C%5C%20x%3D4y%20)
Using Solving the two equations simultaneously:
![x=12-2y \\ x=4y \\ -\ \textgreater \ 4y=12-2y \\ 6y=12 \\ y=2 \\ x=4(2) \\ x = 8](https://tex.z-dn.net/?f=x%3D12-2y%20%5C%5C%20x%3D4y%20%5C%5C%20-%5C%20%5Ctextgreater%20%5C%20%204y%3D12-2y%20%5C%5C%206y%3D12%20%5C%5C%20y%3D2%20%5C%5C%20x%3D4%282%29%20%5C%5C%20x%20%3D%208%20)
This means, Robbie buys 8 scones,
Cameron buys 8 + 2 = 10 scones,
Louis buys 8 + 4 = 12 scones,
Tom buys 8 + 6 = 14 scones,
and Charlie buys 8 + 8 = 16 scones
11.
a) The population is the chips in a day's production.
b) The population would be the radio station's listeners.
c) The population would be the residents of Waterdown.
12.
A horizontal line means the object is not changing its position. The object is stationary (not moving because the distance does not change).
The answer is C your welcome
Whats the area offffffff 5