**Answer:**

(0,-8)

x=0

y=-8

**Step-by-step explanation:**

There are a couple of ways you can solve this I used what I think is called the elimination method

We first start by writing the equations in linear form (y=mx+b)

For the first one we have -12x-5y=40

we add 5y to both sides and subtract 40 to get

-12x-40=5y

divide by 5 to get

**-12/5x-8=y**

Then the second one we have

12x-11y=88

same deal here, add 11y and subtract 88 to get

12x-88=11y

divide by 11 and get

**12/11x-8=y**

We then set the two equations equal to each other and get

-12/5x-8=12/11x-8

We can add 8 to both sides and get

-12/5x=12/11x

Just by looking at it you can see that the only solution for x is 0

Plug in 0 to the first equation and get -12*0-5y=40

This means that -5y=40

Solve for y and get -8

**Given:**

John invest $5,000 in one account and $8,000 in an account paying 4% more in interest.

Total interest in one year = $1230

**To find:**

The rates of the investments.

**Solution:**

Let x% be the rate of interest on investment $5000.

Then, (x+4)% is the rate of interest on investment $8000.

Total interest is $1230. So,

Divide both sides by 130.

Now,

**Therefore, $5,000 is invested at 7% and $8,000 is invested at 11%.**

**Answer:**

1.5%

**Step-by-step explanation:**

2.5% - 1% = 1.5%

I think it’s 8.253 or 8.25

**Answer:**

5/6

**Step-by-step explanation:**

=5/9 * 3/2

simplify

5/3 * 1/2

=

5/6