1. Each side of a wooden cube is 0.6 m. Find its volume.
2. A rectangular marble stone is 6 cm long, 4 cm wide and 5 cm high. If each 3 cm3 is costs $48.80, how much can be made by selling the stone?
Maths
2007-08-30 12:40 am
回答 (2)
2007-08-30 12:54 am
✔ 最佳答案
1. Its volume:0.6 x 0.6 x 0.6 =0.216 M3
2. The volume of the rectangular marble stone : 6 x 4 x 5 =120 cm3
Therefore the cost will be
120/3 x 48.8
= 40 x 48.8
= $1,952
2007-08-30 12:53 am
1. Volume = 0.6*0.6*0.6 = 0.216m^3
2. For a cube with 3cm^3, the length, width and height is around 1.44cm
6cm long stone can make 4 cubes with length 1.44cm
4cm wide stone can make 2 cubes with length 1.44cm
5cm high stone can make 3 cubes with length 1.44cm
Hence, it can make 24 cubes with volume 3cm^3
He can make 24*48.8 = $1,171.2
2007-08-29 16:54:51 補充：
2. it just simply (6*4*5)/3 * 48.8 = $1,952
2. For a cube with 3cm^3, the length, width and height is around 1.44cm
6cm long stone can make 4 cubes with length 1.44cm
4cm wide stone can make 2 cubes with length 1.44cm
5cm high stone can make 3 cubes with length 1.44cm
Hence, it can make 24 cubes with volume 3cm^3
He can make 24*48.8 = $1,171.2
2007-08-29 16:54:51 補充：
2. it just simply (6*4*5)/3 * 48.8 = $1,952
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