Answer: [tex]16\ ml[/tex]
Step-by-step explanation:
You need to analize the information provided in the exercise.
Let be "g" the amount of milliliters of sunscreen that Kwesi needs to cover [tex]240\ cm^2[/tex] of his skin.
Accordding to the data given in the exercise, Kwesi uses [tex]3\ ml[/tex] of sunscreen to cover an area of [tex]45\ cm^2[/tex].
Then, knowing that information you can set up the following proportion:
[tex]\frac{45}{3}=\frac{240}{g}[/tex]
Finally, you must solve for the variable "g" in order to find its value. You get that this is:
[tex]15=\frac{240}{g}\\\\15g=240\\\\g=\frac{240}{15}\\\\g=16[/tex]
Therefore, Kwesi needs [tex]16\ ml[/tex] to cover [tex]240\ cm^2[/tex] of his skin.
