An aquarium is 40 inches long, 25 inches wide, and 30 inches high. It is filled to a depth of 24 inches. If you put a rock in the aquarium which has volume 500 inches3how much higher will the water go? (Answer to the nearest 0.1 inches)


Steven has a large piece of land in the country (not me; a different one). His land is a square plot and the northern edge is in a perfect east/west line (so is the southern edge if you think about it). The road enters his land at a point on the western edge 3 miles due south of the northwest corner and 7 miles as the crow flies from the north east corner. What is the area of the land in square miles?

 Jul 1, 2018

Find the volume of water to a depth of 24 inches.

40 x 25 x 24 =24,000 inches^3 - volume of water in the aquarium.

Immerse the rock with the volume of 500 inches^3 into the aquarium.

24,000 + 500 =24,500 inches^3 -new volume of water after displacement by the rock.

24,500 /40 /25 =24.50 inches - the new depth of water.

24.50 - 24 = 1/2 of one inch - the rise in the water level.

 Jul 1, 2018

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