Respuesta :

Answer: so

60% are blue.

3/5 are blue.

2/5 are red.

There are 3 blue fish and 2 red fish.

fichoh

Using a system of linear equations, the number of blue and red fishes in the aquarium are 3 and 2 respectively.

Let :

  • Number of red fishes = r
  • Number of Blue fishes = b

Number of red fishes :

  • r = b - 1 - - - - (1)
  • b = 0.6(r + b) - - - - (2)

Substitute (1) into (2)

b = 0.6(b - 1 + b)

b = 0.6(2b - 1)

b = 1.2b - 0.6

1.2b - b = 0.6

0.2b = 0.6

b = 3

From (1) :

r = 3 - 1 = 2

Therefore, there are 3 blue fishes and 2 red fishes

Learn more : https://brainly.com/question/18796573

ACCESS MORE
EDU ACCESS