First thing to do, is to half the length of the fish tank so that the water reaches exactly half of the newly formed cube. We then find out the volume of the cube, and we know that we have exactly, half the volume of the cube. To find the volume we multiply all 3 sides in metres (0.4m, 0.5m & 0.6m) which gives us 0,12cubic metres. Half will be the volume we have (ie, 0.06cubic metres).
As we know that 1cubic metre is 1000 litres of liquid, we know that 0,06cubic metres is 60 litres.
Now that we know the amount of water in out cube, we can resolve the new equation with the only unknow details as the height of the water.
1 comment:
Congratulations!!!
Your solution is right and elegant. Anyway, if you think again you will realize you do not need to calculate the volume in liters because that amount is converted back to cubic meters straightaway. I will post my own solution just to illustrate an alternative but equivalent way of doing.
You have got 1 extra point in your Math grade.
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