Answer:
Her last year salary was $50045.05.
Step-by-step explanation:
Consider the provided information.
Alice Swanson got a 11% raise in her salary this year compared to her salary last year.
This year she is earning $55,550.
Let her last year salary be x.
She get 11% raise and now her salary is $55,550.
This can be written as:
![55,550=x+\frac{11}{100} x](https://tex.z-dn.net/?f=55%2C550%3Dx%2B%5Cfrac%7B11%7D%7B100%7D%20x)
![55,550=x+0.11x](https://tex.z-dn.net/?f=55%2C550%3Dx%2B0.11x)
![55,550=1.11x](https://tex.z-dn.net/?f=55%2C550%3D1.11x)
![x\approx 50045.05](https://tex.z-dn.net/?f=x%5Capprox%2050045.05)
Hence, Her last year salary was $50045.05.