Answer:
(3+(3)/(5))(3-(3)/(5))
Step-by-step explanation:
I'm more visual, but if you're not, and this confuses you, ask me, and I'll explain it.
Answer:
.2
Step-by-step explanation:
When you do 64/80 you get 0.8 which means that the percent decrease is .2
Answer:
it seems you have made a typo
Step-by-step explanation:
Answer:
The system of equations has one solution at (-4, 4).
Step-by-step explanation:
We are given the system of equations:

We can use elimination to solve this system. We need to multiply the second equation by -5 so we can cancel out our x-terms.

Therefore, our system now becomes:

Now, we can add these two equations together and solve for y.

Now, we can substitute our value for y into one of the equations and solve for x.

Therefore, our final solution is (-4, 4).