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Dima020 [189]
4 years ago
7

If a solid cube has a density of 6.3 grams per millimeter and a volume of 30 millimeters, how much is it's mass?

Mathematics
1 answer:
agasfer [191]4 years ago
8 0

density= mass/volume

mass= densiy x volume

mass= 6.3 g/mm^3 x 30mm^3= 189 g

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Answer:

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Step-by-step explanation:

Given: i. for the cylinder, base radius = 2x cm, height = h cm

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Since,

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Then we have;

\frac{4}{3}\pix^{2} h = 12\pix^{3}

4\pix^{2} h = 36\pix^{3}

subtract x^{2} from both sides

4\pih = 36\pix

divide both sides by 4\pi

h = \frac{36\pi x}{4\pi }

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h = 9x

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