12x - 8y = -12
6x + 4y = -30
Multiply the 2nd equation by 2, to make the Y coefficients opposite:
6x + 4y = -30 x 2 = 12x + 8y = -60
Now add the two equations:
12x -8y = -12 + 12x +8y = -60
= 24x = -72
Divide bothe sides by 24 to solve for x:
x = -72/24
x = -3
Now replace x with -3 in the first equation to solve for y:
12(-3) - 8y = -12
-36 - 8y = -12
Add 36 to each side:
-8y = 24
Divide both sides by -8 to solve for y:
y = 24 / -8
y = -3
X = -3 and y = -3
(-3,-3)
Answer:
find 9% of 12
12 times 9 divided by 100
108/100
$1.08
12+1.08
Your mean costs $13.08
-Have a nice meal!
Answer:
It would be 502 inches.
Step-by-step explanation Ok so, Just do 20 x 25.1 that would give you your answer.
You multiply it because there is going to be 20 desk But they are 25.1 inch k?
Answer
Find out the what is the clearance price of a manatee.
To prove
As given
The gift shop at manatee mall was having a clearance sale.
Everything was marked down 30%.
The original price of a manatee hat was $12.
30 % is written in the decimal form.

= 0.30
30% of the original price of a manatee = 0.30 × 12
= $ 3.6
Clearance price = original price - 30% of the original price
= 12 - 3.6
= $ 8.4
Therefore the clearance price be $8.4 .
Answer:
<h2>The answer is 15cm</h2>
Step-by-step explanation:
Let b be the length of the second parallel side
Area of a trapezium is given by

where
h is the height
a and b are the parallel sides
From the question
Area = 230 cm²
height = 20cm
one of parallel side / a = 8 cm
Substitute the values into the above formula and solve for b
That's

Reduce the fraction with 2
That's

Expand the terms
That's


Divide both sides by 10
We have the final answer as
<h3>b = 15cm</h3>
Hope this helps you