12 ft I had the question the other day on online school :)
Answer:
![x=\frac{y-3}{4}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7By-3%7D%7B4%7D)
Step-by-step explanation:
![y=4x+3](https://tex.z-dn.net/?f=y%3D4x%2B3)
![y-3=4x](https://tex.z-dn.net/?f=y-3%3D4x)
![\frac{y-3}{4}=x](https://tex.z-dn.net/?f=%5Cfrac%7By-3%7D%7B4%7D%3Dx)
![x=\frac{y-3}{4}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7By-3%7D%7B4%7D)
Answer:
Option D: 6:12 is correct answer.
Step-by-step explanation:
We can find the simplest form of ratio to compare it with the given ratios.
According to given statement,
The ratio is:
![No.\ of\ Blue\ Paint\ Gallons: No.\ of\ red\ paint\ gallons\\2:4\\Simplifying\\1:2](https://tex.z-dn.net/?f=No.%5C%20of%5C%20Blue%5C%20Paint%5C%20Gallons%3A%20No.%5C%20of%5C%20red%5C%20paint%5C%20gallons%5C%5C2%3A4%5C%5CSimplifying%5C%5C1%3A2)
Now we will check if the given options can be simplified to 1:2
So,
Option A:
![8:12\\2:3](https://tex.z-dn.net/?f=8%3A12%5C%5C2%3A3)
Option B:
![8:24\\1:3](https://tex.z-dn.net/?f=8%3A24%5C%5C1%3A3)
Option C:
![3:5](https://tex.z-dn.net/?f=3%3A5)
Option D:
![6:12\\1:2](https://tex.z-dn.net/?f=6%3A12%5C%5C1%3A2)
As we can see that 6:12 can be simplified to 1:2 which is same as 2:4 so it will make the same shade of purple.
Hence,
Option D: 6:12 is correct answer.
You just keep multiplying,preferably with a calculator