Question

In a fish tank 6/7 of the fish have red a stripe on them. If 18 of the fish have red stripes how many total fish are in the tank?

Answer 1

x - the total number of fish in the tank
6/7 of the fish in the tank have red stripes. 18 of the fish have red stripes.


`(6)/(7)x=18 \\ x=18 * (7)/(6) \\ x=3 * 7 \\ x=21`

There are 21 fish in the tank.