A kcl elixir contains 10 meq/15 ml the daily dose is 30 meq how many mls are needed for a 30 day supply

First you need to set this problem up as a cross multiply fraction set (actually forgot the name of it so I described it as that).

10/15 * 30/x

Solve for X

450 = 10x

Simplify

45 = x

The Daily dose is 30 meq/45 ml. For a 30 day supply you just multiply by 30.

1350 ml is needed for a 30 day supply.