SOLUTION: Jeremy has a fish tank that has a 40-cm by 70-cm rectangular base. The water is 25 cm deep. When he drops rocks into the tank, the water goes up by 2 cm. What is the volume in l

Algebra ->  Volume -> SOLUTION: Jeremy has a fish tank that has a 40-cm by 70-cm rectangular base. The water is 25 cm deep. When he drops rocks into the tank, the water goes up by 2 cm. What is the volume in l      Log On


   



Question 194002: Jeremy has a fish tank that has a 40-cm by 70-cm rectangular
base. The water is 25 cm deep. When he drops rocks
into the tank, the water goes up by 2 cm. What is the volume
in liters of the rocks?


can someone help i am trying to help my sis with some work but have forgotten all this stuff thank you

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Fish tank is rectangular. Adding the rocks results in a rise of 2cm.
So adding the rock displaced enough water to fill a "slice" that is 2cm x 40cm x 70cm
The volume in that slice is V+=+L%2AW%2AH
V+=+2%2A40%2A70
V+=+5600cubic cm
1 Liter is 1000cc, so the rock has a volume of 5.6 liters.