A 40 milliliter (mL) bottle of pre-diluted tea tree oil contains a 5% concentration of the active ingredient. If the seller charges $14.96 for the total amount of active ingredient in the bottle, what is the price per mL of the active ingredient?
Q. A 40 milliliter (mL) bottle of pre-diluted tea tree oil contains a 5% concentration of the active ingredient. If the seller charges $14.96 for the total amount of active ingredient in the bottle, what is the price per mL of the active ingredient?
Calculate total active ingredient: Calculate the total amount of active ingredient in milliliters.5% of 40mL = 0.05×40mL= 2mL of active ingredient
Determine cost per milliliter: Determine the cost per milliliter of the active ingredient.$14.96 for 2 mL of active ingredientPrice per mL = $14.96/2 mL= $7.48 per mL