Respuesta :

First thing we need is the volume of the fish tank. We simply multiply the three dimensions to get

V = L*W*H
V = 2.5*1*1.5
V = 3.75

The fish tank can hold 3.75 cubic feet of water if its completely full

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We are told that "one cubic foot of water weighs about 62.4 pounds". 

So we have this ratio
1 cubic foot of water: 62.4 pounds

Multiply both sides of that ratio by 3.75 which was the volume of the fishtank

1 cubic foot of water: 62.4 pounds
3.75*1 cubic foot of water: 3.75*62.4 pounds
3.75 cubic feet of water: 234 pounds

The fishtank can hold 234 pounds of water

note: this is assuming that the walls are strong enough to withstand the pressure/weight of water without cracking or breaking

Answer: 234 pounds

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