Re: How do I do this (Math)

Posted by frankiee on May 20, 2006 at 11:39:48 from (70.24.75.25):

In Reply to: How do I do this (Math) posted by BUDD on May 20, 2006 at 08:13:29:

I take it that it is an irregular shape.
I think that it is cast iron
I think cast iron weighs between 6800Kg and 7800Kg
Sorry, my mind only works in metric.

I would put the weight in a container and have the weight attached to a string.
I would mark how high the water level is with the weight submerged.
I would pull the weight out.
I would carefully fill the container back up with water which is measured by liters or gallons or what ever you are use to.
From that you can find how much it weighs per unit (which ever you chose)
For instance, I would use liters being I am a metric person.
I would find exactly how many liters and milliliters it took to fill the container to its original height with the weight in it.
From that I would multiply by 61 to get cubic inches.
That will be how big the weight is in cid.

Now take the weight (68lbs) divided by the cubic inches.
That will tell you how much each cubic inch weights.
With that knowledge you can figure out how much to cut off the square end.

I would still cut twice. Leave some for error.

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