(Please Hurry!) Which expression is equivalent to the following complex fraction?
1 answer:
Answer:
The expression equivalent to the given complex fraction is

Step-by-step explanation:
An easy way to solve the complex fraction is to solve the numerator and denominator separately.
Numerator:

Denominator:

Solving the complex fraction:
![[\frac{-2}{x} + \frac{5}{y}] / [\frac{3}{y} + \frac{-2}{x}]\\= [\frac{-2y + 5x}{xy}] / [\frac{3x - 2y}{xy}]](https://tex.z-dn.net/?f=%5B%5Cfrac%7B-2%7D%7Bx%7D%20%2B%20%5Cfrac%7B5%7D%7By%7D%5D%20%2F%20%5B%5Cfrac%7B3%7D%7By%7D%20%2B%20%5Cfrac%7B-2%7D%7Bx%7D%5D%5C%5C%3D%20%5B%5Cfrac%7B-2y%20%2B%205x%7D%7Bxy%7D%5D%20%2F%20%5B%5Cfrac%7B3x%20-%202y%7D%7Bxy%7D%5D)

Common terms in the numerator and denominator cancels each other(Cross multiplication) :

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Answer:
y determinant is 3
x determinant is 2
system determinant is 1
False they don't have to be whole numbers. As long as they're greater than 0
3x + 1 + 5x = 7 + 15 + 7x
8x + 1 = 22 + 7x
x = 21
Price increase is $ 22-20 =$2 so the percent increase is 2/20 x 100= 10%