The total change in the amount of water in the tank after 6 days can be found by calculating the change for each day and then multiplying it by the number of days.
Every 3 hours, the tank decreases by 10 gallons. In one day, there are 8 sets of 3 hours (24 hours divided by 3 hours), so the tank decreases by 10 gallons * 8 = <<10*8=80>>80 gallons in a day.
Therefore, after 6 days, the tank will decrease by 80 gallons * 6 = <<80*6=480>>480 gallons.
The total change in the amount of water in the tank after 6 days is therefore 480 gallons.
Therefore, the answer is A) 480 gallons.
a water tank decreases by 10 gallons every 3 hours every day. what is the total change in the amount of the water in the tank after 6 days
A 480 gallons
B 80 gallons
C -480 gallons
D -80 gallons
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