SOLUTION: A rectangular aquarium is 2/3 full when 12000 cm^3 of water are placed in it. The aquarium is 20 cm deep and 20 cm wide. How long is the aquarium? (A) 30 cm (B) 35 cm (C) 40 cm

Algebra ->  Volume -> SOLUTION: A rectangular aquarium is 2/3 full when 12000 cm^3 of water are placed in it. The aquarium is 20 cm deep and 20 cm wide. How long is the aquarium? (A) 30 cm (B) 35 cm (C) 40 cm       Log On


   



Question 207038: A rectangular aquarium is 2/3 full when 12000 cm^3 of water are placed in it. The aquarium is 20 cm deep and 20 cm wide. How long is the aquarium?
(A) 30 cm (B) 35 cm (C) 40 cm (D) 45 cm (E) 50 cm

Answer by rfer(16322) About Me  (Show Source):
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D) 45 cm
the full cubic area is 12000/.66=18182 cm^3
18182/(20*20)=45 round off