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Sandra has a cylindrical mold for making candles with a radius of 3.4 cm and a height of 6 cm. If Sandra uses a rectangular block of wax measuring 15 cm by 12 cm by 18 cm, about how many candles can she make after melting the block of wax?

User Simultsop
by
8.3k points

1 Answer

4 votes

Answer:


14\ candles

Explanation:

step 1

Find the volume of the cylindrical mold

The volume is equal to


V=\pi r^(2) h

we have


r=3.4\ cm


h=6\ cm

assume


\pi=3.14

substitute


V=(3.14)(3.4)^(2)(6)


V=217.79\ cm^(3)

step 2

Find the volume of the wax

The volume is equal to


V=(15)(12)(18)


V=3,240\ cm^(3)

step 3

Divide the volume of the wax by the volume of the cylindrical mold, to calculate the number of candles


3,240/217.79=14.9\ candles

Round down


14\ candles

User Nick Rioux
by
8.3k points
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