Answer:
4.8 gallons of water.
Step-by-step explanation:
Mai is filling his fishing tank with water. This shows a proportional relation between the time and the amount of water filled.
Amount of water filled (In gallons) ∝ Duration (In minutes)
w ∝ t
w = kt ---------(1)
For t = 0.5 gallons,
Amount of water = 0.8 gallons
From equation (1),
0.8 = k(0.5)
k = 1.6
So the proportionality equation will be,
w = 1.6t
Now we have to find the amount of water filled in 3 minutes.
w = 1.6 × 3
= 4.8 gallons
Therefore, water filled in the tank after 3 minutes = 4.8 gallons.