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The aquarium has 3 more yellow fish than green fish. 60 percent of the fish are yellow. How many green fish are in the aquarium? Show your work

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Answer:

6 green fish

Step-by-step explanation:

green fish = x

(X+3)/60  =  x/40

Cross multiplication

60x = 40x+120

subtract 40x on both sides

20x = 120

Divide both sides by 20

x=6

The aquarium has 3 more yellow fish than green fish  6+3 = 9 (9 yelow)

15 fish in total

60% of 15 = 9

40% of 15 = 6

The number of green fish are in the aquarium is 6.

Given that,

  • The aquarium has 3 more yellow fish than green fish.
  • 60 percent of the fish are yellow.
  • Let us assume the green fishes be x and yellow fishes be y.
  • Total no of fished = x + y.
  • And, y = x + 3

Based on the above information, the calculation is as follows:

[tex]60\div 100(x+y) = y[/tex]

Now, put y = x + 3

So,  

 

[tex]60\div 100 (x+x+3) = x+3\\\\60 (2x + 3) = 100 (x + 3)[/tex]

120x + 180 = 100x + 300

20x = 120

X = 6

Learn more: brainly.com/question/17429689

 

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