Answer:
y = 9
Step-by-step explanation:
So if x = 3, we can sub that into the equation.
This gives us:
6.4 (* 3) + 2.8y = 44.4
so:
19.2 + 2.8y = 44.4
25.2 = 2.8y
so
y = 9
Answer:
Perimeter of the square field is 600 meters.
Step-by-step explanation:
Given:
Area of a square field = 2.25 hectares
1 hectare = 10000 m²
∴2.25 hectares =
m²
Now, let each side length of the square field be
meters.
∴ Area = 
⇒ 
⇒
m
Now, perimeter of a square is given as,
.
Here,
m.
∴
m
Hence, the perimeter of the square field is 600 meters.
Answer:
26
Step-by-step explanation:
○= 7
□=5
◇=4 (The triangle)