Inequality form: x > 2
Interval notation: (2, ∞ )
Combine the two equations in the right amounts to eliminate y :
-2 (2x + 3y) + (3x + 6y) = -2 (17) + 30
-4x - 6y + 3x + 6y = -34 + 30
-x = -4
x = 4
Solve for y :
2x + 3y = 17
8 + 3y = 17
3y = 9
y = 3
Answer:
v=0.79x+3.99
f=1.89x+5.49
combined cost: 2.68×+9.48
Answer: 14/5
Step-by-step explanation: