3 years ago

Andrew spent $80 on travel last month.

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

8 0

195/30 * 80 = $520 spent on household bills last month

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Answer:

Part 1) The volume of the ball is 256 cm³

Part 2) The radius of the ball is 3.94 cm

Step-by-step explanation:

Part 1) we know that

The density is equal to divide the mass by the volume

D=m/V

Solve for the volume

The volume is equal to divide the mass by the density

V=m/D

In this problem we have

m=128 g

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substitute

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Part 2) what is the radius of the ball?

we know that

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we have

$V=256\ cm^{3}$

assume

$\pi =3.14$

substitute and solve for r

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$768=(12.56)r^{3}$

$r^{3}=768/(12.56)$

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