Respuesta :

Answer:    acid + acid = acid

x+%2B++.30%2A5gal+=+.50%285%2Bx%29

           +.5x+=+.20%2A5

                 x = 2 gal

Note:  2gal + 1.5gal = 3.5gal                      

Set Up on ALL mixture problems is to have the same amount of the key ingredient on both sides of the EQ

Step-by-step explanation: