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 amount of active ingredient in the bottle what is the price per mL of the active ingredient

The price per ml of the active ingredient is $7.48

Step-by-step explanation:

step 1

Find the amount of active ingredient in the bottle

we know that

A 40 milliliter (mL) bottle contains a 5% concentration of the active ingredient

5%=5/100=0.05

Multiply 40 milliliter by 0.05 to obtain the amount of active ingredient in the bottle

so

40*0.05=2 ml

step 2

Find out the price per mL of the active ingredient

Calculate the unit rate

Divide $14.96 by the volume of the active ingredient

14.96/2=7.48 $/ml

therefore

The price per ml of the active ingredient is $7.48