Question

A worker ar a pet store tells jillian that the total length of the fish in her aquarium should be no more than 10 inches black phantom tetras are 2 inches long and neon tetras are 1.25 inches long

Answer 1

3x + 1.25 < 10
-1.25 -1.25
----------------------
3x < 8.75
----- -------
3 3

x = about 3


less than or equal to sign