# How do you evaluate the expressions (2y^2) /( -5y) given x= 3 and y=5?

Jul 29, 2016

There doesn't seem to be a variable $x$ in the expression, so let's just ignore that for now. All you have to do is substitute the 2 $y$'s in the expression for $5$.

#### Explanation:

The expression now looks like this:

$\frac{2 {\left(5\right)}^{2}}{- 5 \left(5\right)}$

Next, solve:

$2 {\left(5\right)}^{2} = 50$

$- 5 \cdot 5 = - 25$

We now have $\frac{50}{-} 25$, or $- 2$.