In how many ways can Susan arrange 10 books into 3 slots on her bookshelf?

1 answer:

4 0

Hello there,

If she has 10 books and she can arrange it 3 ways on her bookshelf, you just multiply 10 and 3

10 x 3= 30

Susan can arrange 10 books into 3 slots 30 ways.

Hope this helps!

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Using the volume of the spherical balloon, it is found that it will take 24 hours for the balloon to become completely empty.

<h3>What is the volume of a sphere?</h3>

The volume of a sphere of radius r is given by:

$V = \frac{4\pi r^3}{3}$

Aspherical balloon has a radius of 6 feet, hence the volume is:

$V = \frac{4\pi 6^3}{3} = 905$

It has already lost 20% of it's air, and air is leaking out of the balloon at a rate of 30 cubic feet per minute, hence the volume after t minutes is given by:

$V(t) = 0.8(905) - 30t$