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Maths problem!!!Need Help!!!!

a rectangular tank with no lid has a surface area of 486cm3. If it's length is twice its height and it's width is half it's height, find the dimensions of the tank.

explain if possible!!!!! Thank you!!!!

Maths problem!!!Need Help!!!!
 karolinak1999 posted più di un anno fa
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Book-Freak said:
Sure, I'll help! I'll take te through the first half of the sum, and leave the rest to you.

So, te know that the surface area is 486cm3. The formula to find out the surface area is length x width x height. So thats:

L x W x H = 486cm3

Now, this becomes algebraic. te need to find a common length that the others are all relative to, which is given: height.

Length = Height x 2, which simplifies to L = 2H
Width = Height / 2, which simplifies to W = 0.5H

te then put them into the formula.

2H x 0.5H x H = 486 cm3

See how te go from here. If te need anymore help, just ask.

select as best answer
posted più di un anno fa 
neonstars said:
No. I believe te beilive help with your grammar, it's math problems sweetie,
select as best answer
posted più di un anno fa 
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Wait hold on " no . I believe te beilive help with your grammar ? What the hell does that mean . Don't start saying a mates grammars bad . When yours sucks too .
summer2987 posted più di un anno fa
Hiding 25 comments... click to show.
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Why do te call me a noon ?
summer2987 posted più di un anno fa
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Noob *
summer2987 posted più di un anno fa
summer2987 said:
Ask your teacher .
select as best answer
posted più di un anno fa 
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I wanna know now!!!! - but good idea
karolinak1999 posted più di un anno fa
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We'll I would help te if I actually stay awake during a class .
summer2987 posted più di un anno fa
egyptprincess7 said:
*Brain explodes*

Go...ask...your...teacher...or...a...math....expert...
 select as best answer
posted più di un anno fa 
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I will if no one here can help me.........
karolinak1999 posted più di un anno fa
zikkiforever said:
The internet is a wonderful place with answers. The answer is not here this time.

Anyway,if somebody knew why are we doing YOUR
maths work?

Now te postato this,you reminded me I need to do my homework(really can't be bothered to write a report,read two libri and do a Leggere paper).
 select as best answer
posted più di un anno fa 
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right
KatelynBrown posted più di un anno fa
wantadog said:
I do not know.
 select as best answer
I do not know.
posted più di un anno fa 
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