Posted by anjali on Tuesday, October 7, 2008 at 6:22pm.
An empty 5gal water jug weights 0.75lb. with 3 c of water inside, the jug weighs 2.25 lbs. Predict the weight of the jug with 5 c of water inside.
Plz explain how to do this.....

maths help!!!!!!!!  bobpursley, Tuesday, October 7, 2008 at 6:25pm
I would find the weight of the 3 cup water...
Do that by subtracting the empty weight from the final weight.
Now, find the weight of 1 cup...divide the weight of 3 cup by 3.
Now to find the weight of 5c, ...

maths help!!!!!!!!  Ms. Sue, Tuesday, October 7, 2008 at 6:27pm
2.25  0.75 = 1.5 lbs.
1.5 / 3 = 0.5
If one cup weighs 0.5 lbs., how much does 5 c weigh?
Add the weight of 5 c to the weight of the empty jub.
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