Answered

Kwesi is putting on sunscreen. He uses 3ml to cover 45 cm2 ​​ of his skin. He wants to know how many milliliters of sunscreen g he needs to cover 240 cm2 ​​of his skin. He assumes the relationship between milliliters of sunscreen and area is proportional.

Verified Answer :

spnickoloff

16 ml. If you set 3/45 = x/240 where x is the amount he needs for 240ml^2, then cross multiply and divide to find x you get 16

calculista

Answer:

The answer is \(16\ ml\)

Step-by-step explanation:

we know that

He uses \(3\ ml\) to cover \(45\ cm^{2}\) ​​ of his skin

so

by proportion

Find how many milliliters of sunscreen are needed to cover  \(240\ cm^{2}\)

\(\frac{3}{45}\frac{ml}{cm^{2}} =\frac{x}{240}\frac{ml}{cm^{2}} \\ \\x=240*3/45\\ \\ x= 16\ ml\)

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