# SOLUTION: When 10 cubic feet of water is poured into an empyt fish tank (rectangular Prism), the tank becomes 3/4 full. If the tank is 2 feet 8 inces wide and 40 inches long, how tall is the

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 Click here to see ALL problems on Linear Equations And Systems Word Problems Question 260349: When 10 cubic feet of water is poured into an empyt fish tank (rectangular Prism), the tank becomes 3/4 full. If the tank is 2 feet 8 inces wide and 40 inches long, how tall is the tank?Answer by drk(1908)   (Show Source): You can put this solution on YOUR website!First we make sure all units are the same -> 2 ft 8 in means 32 inches. Volume of tank = LWH = 32*40 *H = 1280H We need a proportion now: (i) cross multiply to get (ii) divide to get X = 13.333 cu. ft. -- 13.3333 cu ft. (12 in / ft)^3 = 1280H cu. in. which means 17040 cu. in. = 1280H cu. in. H = 13.3125 in.