Answer:
(5, 4)
Step-by-step explanation:
given the 2 equations
y = 3x - 11 → (1)
y = 4 → (2)
Substitute y = 4 into (1)
3x - 11 = 4 ( add 11 to both sides )
3x = 15 ( divide both sides by 3 )
x = 5
solution is (x , y) = (5, 4)
Answer:
314
Step-by-step explanation:
Write and solve an equation of ratios:
9 ft 22 ft
------- = -----------
h 99 ft
This is appropriate because h is greater than 9 ft.
cross-multiplying, we get
9(99) ft^2 = 22*h*ft
Then h =40.5 ft (which is the height of the building)
Answer:
7
Step-by-step explanation:
36+42=6(6+□)
78= 6 (6+n)
78/6 = 6/6 (6+n)
13=(6+n)
13-6 = (6-6 +n)
7= n