Gronk has water and a solution that is 90% Gatorade. How many gallons of water should be mixed with the Gatorade to make 20 gallons of a new mixture that is 72% Gatorade?

Gatorade in ingrediants = gatorade in final product

x = amount of 90% mix

.9 x = .72 (20)

x = 16 gallons to make the final mixture volume 20 gallons, add 4 gallons of water.

i had the same thing on my test lmao

thank you, later I found the the system of equations was

x+y=20

(y*90%)/(x+y)=72%

and I got x=4, y=16, just like you got, awesome soultion by you also.