Question

How much pure water must be mixed with 10 liters of a 25% acid solution to reduce it to a 10% acid solution?


11 L
15 L
25 L

Answer 1

10(.25) + w(0) = (10+w)(.10); maybe

Answer 2

my calc cant do tht

Answer 3

try a pencil and paper then ...

Answer 4

do i just plug one of the three awnser in????

Answer 5

if solving a 1 variable equation is too strenuous ... then yeah, plugging in the options to see what fits is a good way to go

Answer 6

its 15L....?

Answer 7

15 sounds good to me

Answer 8

yesh it does

Answer 9

:) good luck