Respuesta :

clarch19

Answer:

160 minutes or 2 hours, 40 minutes

Step-by-step explanation:

1 gallon = 128 oz

5 gallons = 640 oz

create a proportion:

let 'x' = time in minutes to fill tank

40 oz/ 1 min = 640 / x

cross-multiply:

40x = 640

x = 160 minutes

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