1. is so hard for me it’s a before and after radio problem i can never do them

40

Step-by-step explanation:

Let x represent the original ratio and y represent the final ratio:

  Egg  :     Tuna

  2x            3x

                    +15     15 tuna were added

  2x = y       3x + 15 = 3y     y and 3y are the final 1:3 ratio

Now you have a system of equations. I am going to choose the substitution method. "2x" can be substituted for "y" in the second equation:

3x + 15 = 3y

3x + 15 = 3(2x)

3x + 15 = 6x

        15 = 3x

         5 = x

Egg (final): 2x  = 2(5)   = 10

Tuna (final): 3x + 15   = 3(5) + 15   = 15 + 15   = 30

Egg (final) + Tuna (final) = Total sandwiches

      10       +        30        =         40

e = number of egg sandwiches

t = number of tuna sandwiches

since they're on a ratio of 2:3 then e/t = 2/3

step-by-step explanation:

pls refer ro the top for answer