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The probability of getting a female fish is 30%.  If there are 18 female fish in the tank, how many total fish are in the tank? 

 

I need to know how to do i for other equations, and what this answer is.

 Nov 19, 2018
 #1
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Let total number of fish be T.  Then    0.3*T = 18  so T = 18/0.3  or T = 60

 Nov 19, 2018
 #2
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Nevermind I found out how to do it.

 

18 = 30

 x    100

cross multiply

30x=1,800

x=60

 Nov 19, 2018
 #3
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Whoops started before you sent...

Thanks anyway.

Guest Nov 19, 2018

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