Answer:
The sales tax on a 320 dollars purchase is of $29.6.
Step-by-step explanation:
State sales tax y is directly proportional to retail price x.
This means that:
![y = cx](https://tex.z-dn.net/?f=y%20%3D%20cx)
In which c is the constant of proportionality.
An item that sells for 156 dollars has a sales tax of 14.42 dollars.
This means that
. We use this to find c. So
![y = cx](https://tex.z-dn.net/?f=y%20%3D%20cx)
![14.42 = 156c](https://tex.z-dn.net/?f=14.42%20%3D%20156c)
![c = \frac{14.42}{156}](https://tex.z-dn.net/?f=c%20%3D%20%5Cfrac%7B14.42%7D%7B156%7D)
![c = 0.0924](https://tex.z-dn.net/?f=c%20%3D%200.0924)
Then
![y = 0.0924x](https://tex.z-dn.net/?f=y%20%3D%200.0924x)
What is the sales tax on a 320 dollars purchase?
y when
. So
![y = 0.0924(320) = 29.6](https://tex.z-dn.net/?f=y%20%3D%200.0924%28320%29%20%3D%2029.6)
The sales tax on a 320 dollars purchase is of $29.6.
<span>55 miles from the mountains
</span>
Answer:
m
Step-by-step explanation:
vfmjj vdzaazb knkuvggb
Answer:
Show us the equation
Step-by-step explanation:
Could you put a screenshot of it