Question 1199186
your concentration available is 33 units to 1 liter.
1 liter = 1000 milliliters.
therefore, the order is for 33 units to 1000 milliliters.


you have a 10 milliliter vial with a concentration of 100 units per milliliter.


you want to add 33 units to 1000 milliliters.
since your vial contains 100 units to 1 milliliter, you need to add .33 milliliters from the vial to the bag.


your ratio is 100/1 = 33 / x
x is the number of milliliters you have to add.
cross multiply to get:
100 * x = 1 * 33
solve for x to get:
x = 33/100 = .33 milliliters


you need to add .33 milliliters from the vial to add 33 units to the bag..
that would be selection Oa.