Answer:
{(-34/7, -16/7)}
Step-by-step explanation:
Rearrange values, multiply to solve for x.
(5) 2y = 3x + 10
(-2) 5y = 4x + 8
Solve for x.
10y = 15x + 50 ↓
-10y = -8x -16
Combine and evaluate.
0 = 7x + 34
Subtract 34 from both sides.
7x = -34
Divide both sides by 7.
x = 
Plugin x value into either equation to solve for y.
2y = (3 × ) + 10
2y = 
+ 10
2y = 
y = 
Answer:
8x+12
Step-by-step explanation:
We know that squares have equal sides. To calculate perimeter, just add up all of the 4 sides.
2x+3+2x+3+2x=3+2x+3
Add like terms:
8x+12
You could also multiply by four:
4(2x+3)
Use distributive property:
8x+12
Answer:
$6.40
Step-by-step explanation:
2.56 / 16 = 0.16
so 16 cents per oz
16 * 40 = 640
There are 12 months in most years.
.. 23%/12 ≈ 1.91667%
_____
The answer shown in your picture is correct to 2 decimal places.
Answer:
x^2 + x-72=0
Step-by-step explanation:
x(x+1) =72
Distribute
x^2 +x = 72
Subtract 72 from each side
x^2 +x - 72 = 0
Now this is the equation we can factor
