2x+3y= -17
5x+2y= -4
You must cancel either the x or y out to solve so i'm going to cancel the x.
-5(2x+3y= -17)
2(5x+2y= -4)
This simplifies to:
-15x -15y=85
15x+4y= -8
The -15x and 15x cancel out leaving you:
-15y=85
4y= -8
You add them top numbers by the bottom and get:
-11y=77
Then divide by -11 to get y by its self.
y= -7
Now that you know what y is just plug it in to either original problem. I will use the second one.
5x + 2(-7) = -4
5x -14 = -4
5x = 10
x = 2
So the answer is (2,-7) or x=2 and y=-7

6 0

3 years ago

Read 2 more answers

Angela is following this recipe to make biscuits.

maks197457 [2]

Answer : The amount of margarine needed is 1 kg.

Step-by-step explanation :

First we have to convert volume of syrup from mL to L.

Conversion used:

1 L = 1000 mL

or, 1 mL = 0.001 L

So, 225 mL = 0.225 L

Now we have to calculate the amount of margarine needed.

As, 0.225 L of syrup needed 150 g of margarine

So, 1.8 L of syrup needed $\frac{1.5L}{0.225L}\times 150 g=1000g$ of margarine

Amount of margarine needed = 1000 g = 1 kg (1 kg = 1000 g)

Therefore, the amount of margarine needed is 1 kg.

4 0

3 years ago

Comb someone help me

hammer [34]

C is the correct statement

∠CBE and ∠DEB are same side interior angles

6 0

3 years ago

The weekly cost (c) of manufacturing (x) number of remotes is given by the equation below. what is the cost to manufacture 2500

IRISSAK [1]

C= 2000 + 3(2500)
C= 2000 + 7,500
C= $9,500

6 0

3 years ago