How many litters of pure water should be mixed with a 11-L solution of 60% acid to produce a mixture that is 80% water?

it would open into a square depending on the type of envelope i’m not sure about the second part

hi there!

not proportional because the 42 does not go into 120 and 3 does not go into 8.

correct proportion: $40/1 ticket.

the reason i say this is because 40/1 is simplified and it evenly goes into 120/3.

hope this : )