Answer :

that is like the ratio Tetra: ruppies
that is 11:1

so add them together thta is 12=

12x11 tetras is 44

4x1 guppies=4

44:4
AL2006
Guppies . . . . 1 time
Tetras . . . . . 11 times

Sum of fish. . . . . 12 times
Number of fish . . 48

           12 times = 48

Divide each side of the equation by 12 :

              1 time = 4

Guppies  =  1 time  =  4 guppies

Tetras  =  11 times  =  11 x 4  =  44 tetras

Total fish  =  4 + 44  =  48    yay !