Question 8 (essay worth 10 points) (04.04 mc) the aquarium has 6 fewer yellow fish than green fish. 40 percent of the fish are yellow. how many green fish are in the aquarium? show your work.

18

Step-by-step explanation:

Let the number of green fish = x

Yellow fish will be =x-6

Total number of fish= x+x-6 =2x-6

40% of the fish are yellow; 40/100 (2x-6)= x-6

4/10 (2x-6) = x-6

4(2x-6)/10 = x-6multiply by 10 both sides

4(2x-6) = 10(x-6)

8x-24=10x-60collect like terms

60-24=10x-8x

36=2xdivide by 2 both sides

18=xNumber of green fish

Yellow fish=x-6 =18-6=12

Total number of fish= 18+12=30