I assume you’re solving for both X and Y
9) is X= -4, Y = 6
11) is X = -2, Y = 0
I can’t read all of 13.
I hope that helps.
Answer:
a
Step-by-step explanation:
Direct proportion is when two numbers move in the same direction. If one of the numbers increase, the other number increases and if the one of the numbers decrease, the other number decreases. The magnitude of the movement of the numbers is bounded by a constant
The expression for direct proportion is
y ∝ kx
where k is the constant
let illustrate with an example :
If x = 10
k = 4
y = 10 x4 = 40
Answer:
4 seats economic, 2 seats first class, 3 seats business class, 1 seat premium class
Step-by-step explanation:
4 \times economy class = 400$ +
2 \times first class = 300$ +
3 \times bussines class = 600$ +
1 \times premium class = 300$
= 1600$
<em>This </em><em>is </em><em>the </em><em>way </em><em>to </em><em>spend </em><em>the </em><em>least </em><em>money </em><em>if </em><em>everyone </em><em>is </em><em>seated </em><em>on </em><em>one </em><em>seat.</em><em> </em>
