20% or 2 cm 1 dm = 10 cm.
Answer:
The cost of 1 orange y = 1.1
Step-by-step explanation:
Let cost of 1 apple = x
Cost of 1 orange = y
We will make equations from given statements to find the cost of 1 orange i.e y
Wilma bought 3 apples and 6 oranges for $9: Mathematical expression will be: ![3x+6y=9](https://tex.z-dn.net/?f=3x%2B6y%3D9)
Fernando bought 6 apples and 2 oranges for $7. Mathematical expression will be: ![6x+2y=7](https://tex.z-dn.net/?f=6x%2B2y%3D7)
Let:
![3x+6y=9--eq(1)\\6x+2y=7--eq(2)](https://tex.z-dn.net/?f=3x%2B6y%3D9--eq%281%29%5C%5C6x%2B2y%3D7--eq%282%29)
Multiply eq(1) by 2 and subtract both equations.
![6x+12y=18\\6x+2y=7\\- \ \ \ - \ \ \ \ -\\-----\\10y=11\\y=11/10\\y=1.1](https://tex.z-dn.net/?f=6x%2B12y%3D18%5C%5C6x%2B2y%3D7%5C%5C-%20%5C%20%5C%20%5C%20-%20%5C%20%5C%20%5C%20%5C%20-%5C%5C-----%5C%5C10y%3D11%5C%5Cy%3D11%2F10%5C%5Cy%3D1.1)
So, We get value of y=1.1
Now, put value of y in eq(1) to find value of x
![3x+6y=9\\3x+6(1.1)=9\\3x=9-6.6\\3x=2.4\\x=2.4/3\\x=0.8](https://tex.z-dn.net/?f=3x%2B6y%3D9%5C%5C3x%2B6%281.1%29%3D9%5C%5C3x%3D9-6.6%5C%5C3x%3D2.4%5C%5Cx%3D2.4%2F3%5C%5Cx%3D0.8)
So, the cost of 1 orange y = 1.1
Answer : (2, 2) have a good day
Answer:Typically 2 sides and 1 angle need to be given in order to determine a unique triangle. Alternatively 1 side and 2 angles, or the Cartesian coordinates of three vertices, or the area, base, and height. In any case 3 pieces of information.
Step-by-step explanation: