9 months ago

PLEASE HELP ASAP WILL GIVE BRAINLIST!!

Mathematics

1 answer:

Mrac [35]9 months ago

4 0

Answer: 18 units

i love graphs

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kykrilka [37]

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2 years ago

27 solid iron spheres, each of radius 'xcm'ate melted to form a sphere with radius 'ycm',find the ratio x:y

r-ruslan [8.4K]

Answer:3:1

Step-by-step explanation:

Given

There are 27 solid spheres of radius x cm

The volume of a sphere is $\frac{4}{3}\pi r^3$

The volume of 27 old spheres is the same as the volume of a new sphere

The volume of the old spheres is

$V_o=\dfrac{4}{3}\pi x^3$

The volume of a new sphere is

$V_n=\dfrac{4}{3}\pi y^3$

Now, $V_o=V_n$

$\Rightarrow 27\times \dfrac{4}{3}\pi x^3=\dfrac{4}{3}\pi y^3\\\\\Rightarrow (\dfrac{x}{y})^3=27\\\\\Rightarrow \dfrac{x}{y}=3$

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2 years ago

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Fynjy0 [20]

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3 years ago

James is a welder who earns $20 per hour. He works 8 hours per day, Monday through Friday. How much does James earn in one week?

lara [203]

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3 years ago

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Sladkaya [172]

Answer:

Emily , don't put your whole name in the questions :DDDD, it's at the top of the page, anyway, Eloper .. :DDD

Step-by-step explanation:

It's arithmetic b/c you're just adding 1

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are the answers , the last one is b/c that's the common difference.

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2 years ago

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