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CooperTeam
Joined: 20 Jul 2006
Posts: 2
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 Posted: Thu Jul 20, 2006 5:58 pm Post subject: New math Question just for you... |
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Well, since no one else will, I figure I would post one just for fun...
There is this new fish. All we know about this new fish is...
1.) The size of the head is 9 inches long...
2.) The size of the body is the size of the head + size of tail...
3.) The size of the tail is the size of the head plus 1/2 the size of the body...
What is the total size of the fish??? (The total must be in "inches")
Can anyone guess or figure this out???  
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The human era is over, mutant era has come... |
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Jack
Joined: 20 Jul 2006
Posts: 278
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| Posted: Thu Jul 20, 2006 6:47 pm Post subject: |
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| 72" or 6' |
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CooperTeam
Joined: 20 Jul 2006
Posts: 2
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| Posted: Fri Jul 21, 2006 2:57 am Post subject: |
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Very good, someone got the answer, now can you show everyone else how you got the answer???
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Tehcrzyazn
Joined: 02 Jan 2007
Posts: 304
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| Posted: Sat Aug 09, 2008 4:37 pm Post subject: |
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If we set things as follows:
H = size of the head
B = size of the body
A = size of the tail
then from what you've given us we can say:
H = 9
B = H + A
A = H + B/2
We can then use substitution method as follows:
A = 9 + (9+A)/2
2(A) = 2(9 + (9+A/2)
2A = 18 + 9 +A
2A-A = 27 +A -A
A = 27
Now that we have A, we can substitute it back into:
B = H + A
B = 9 + 27
B = 36
H = 9
B = 36
A = 27
9+36+27 = 72
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