If it’s true or false the answer is false.
Answer:
Step-by-step explanation:
3/9
7/21
Answer:
, ![y=\frac{32}{5}x](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B32%7D%7B5%7Dx)
, ![y=6.4x](https://tex.z-dn.net/?f=y%3D6.4x)
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or ![y=kx](https://tex.z-dn.net/?f=y%3Dkx)
Find the value of the constant of proportionality k
take any ordered pair from the data
For x=25, y=160
![k=\frac{y}{x}](https://tex.z-dn.net/?f=k%3D%5Cfrac%7By%7D%7Bx%7D)
substitute the values of x and y
![k=\frac{160}{25}](https://tex.z-dn.net/?f=k%3D%5Cfrac%7B160%7D%7B25%7D)
simplify
![k=\frac{32}{5}](https://tex.z-dn.net/?f=k%3D%5Cfrac%7B32%7D%7B5%7D)
The linear equation is equal to
![y=\frac{32}{5}x](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B32%7D%7B5%7Dx)
or
![y=6.4x](https://tex.z-dn.net/?f=y%3D6.4x)
Answer:
a) 4 ; b) 8
Step-by-step explanation:
4×3-8 = 12-8 = 4
4×4-8 = 16-8 = 8