Question

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. How many milliliters of sunscreen does Kwesi need to cover 240 cm2 of his skin?

Answer 1

Hope this helps you.

Answer 2

He needs 16 milliliters of sunscreen to cover 240 sq.cm.

Step-by-step explanation:

Amount of sunscreen required to cover 45 sq.cm. = 3 m

Amount of sunscreen required to cover 1 sq.cm. =$\frac{3}{45}$

Amount of sunscreen required to cover 240 sq.cm. = $\frac{3}{45} \times 240$

Amount of sunscreen required to cover 240 sq.cm. = 16 ml

Hence He needs 16 milliliters of sunscreen to cover 240 sq.cm

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