Question

At a pet store, there are 30 aquariums.

Of the 30, 20 have fresh water with
15 fish each. The other 10 aquariums
have salt water with 6 fish each. Which
equation could be used to find f, the
total number of fish at the pet store?

Answer 1

f = (20 × 15) + (10 × 6)

Step-by-step explanation:

You are just find how many fish are salt water and how many freshwater and adding them together. The total number of aquariums is irrelevant in this case.