-4x + 3y = 6
-4x + 4x + 3y = 6 + 4x
<u>3y</u> =<u> 6 + 4x</u>
3 3
y = 2 + 4/3x
-4x + 3(2 + 4/3x) = 6
-4x + 6 + 4x = 6
-4x + 4x + 6 = 6
0x + 6 = 6
<u> -6 -6</u>
<u>0x</u> = <u>0</u>
0 0
x = 0
-4(0) + 3y = 6
0 + 3y = 6
<u>+0 +0</u>
<u>3y</u> = <u>6</u>
3 3
y = 2
(x, y) = (0, 2)
Answer:



Step-by-step explanation:
Let
x ----> the number of first class seats
y ----> the number of economy class seats
we know that
An aircraft has a maximum of 30 first class seats
so

An aircraft has a maximum of 220 economy seats

A flight will be cancelled if the money taken for the seats is less than $28,800.
so

therefore
Three inequalities that represent the situation are



First, you need to find the length of the smaller cubes side. To do this you would need to find the square root of 0.25. then you find the volume with the new found side length of the smaller cube by cubing the new side length and once you have your volume of smaller cube right it down.
Now you need to find the big cube volume by cubing its side length. Once you have found both of these volumes you subtract the smaller cube's volume from the bigger cube's volume to get the difference in size. Hope this helps
4x - 2x = - 3 - 5
2x = - 8
x = - 4