Answer:
b 12 hats for $48
Step-by-step explanation:
Answer:
just use the app Math-way it had a feature where you can take a picture of it and it will answer and give an explanation for your problem
He owes half as much so you would divide the amount (28) by 2. So the answer is 1. 28/2
Answer:
![x_1=0.14\\x_2=-85.14](https://tex.z-dn.net/?f=x_1%3D0.14%5C%5Cx_2%3D-85.14)
Step-by-step explanation:
1. You have the following expression given in the problem above:
![12+12x=x^{2}-7x+104x](https://tex.z-dn.net/?f=12%2B12x%3Dx%5E%7B2%7D-7x%2B104x)
2. Then, you need to add like terms, so you have:
![0=x^{2}+85x-12](https://tex.z-dn.net/?f=0%3Dx%5E%7B2%7D%2B85x-12)
3. Apply the quadratic formula, as following:
![x=\frac{-b+/-\sqrt{x^{2}-4ac}}{2a}\\a=1\\b=85\\c=-12](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-b%2B%2F-%5Csqrt%7Bx%5E%7B2%7D-4ac%7D%7D%7B2a%7D%5C%5Ca%3D1%5C%5Cb%3D85%5C%5Cc%3D-12)
Then:
![x_1=0.14\\x_2=-85.14](https://tex.z-dn.net/?f=x_1%3D0.14%5C%5Cx_2%3D-85.14)