The tank has 200*.8=<<200*.8=160>>160 gallons of water in it

That water weighs 160*8=<<160*8=1280>>1280 pounds

So in total it weighs 1280+80=<<1280+80=1360>>1360 pounds

# Answer

1360
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John has a large water collection tank.  The tank can hold 200 gallons.  It weighs 80 pounds empty.  A rainstorm fills it to 80% of capacity.  If a gallon of water weighs 8 pounds, how much does it weigh now?
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user
1360
John has a large water collection tank.  The tank can hold 200 gallons.  It weighs 80 pounds empty.  A rainstorm fills it to 80% of capacity.  If a gallon of water weighs 8 pounds, how much does it weigh now?
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