Devin is making a candle by pouring melted wax into a mold in the shape of a square pyramid. Each side of the base of the pyramid is 6 cm and the height of the pyramid is 9 cm. To get the wax for the candle, Devin melts cubes of wax that are each 4 cm by 4 cm by 4 cm. How many of the wax cubes will Devin need in order to make the candle? Show your work.

4.21 wax cubes Devin will need in order to make the candle.

Step-by-step explanation:

Volume of Pyramid/ Volume of Cube

1/3(81(10)/ (4)(4)(4) = 270/64 = 4.21

The volume of the square pyramid is 6 x 6 x 9/3 = 108 cubic cm.

Volume of the cube = 4 x 4 x 4 = 64 cubic cm

Number of cubes needed: 108/64 = 1 11/16 cubes (1.6875)

7/2

(decimal: 3.5)

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step-by-step explanation: