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3 years ago

a container is 24m long ,9m wide and 8m high. How many books can it hold if each book is 20cm long, 16cm wideand 6cm thick

Mathematics

1 answer:

kotykmax [81]3 years ago

4 0

Answer:

900,000 books

Step-by-step explanation:

book is a three dimensional object there you need to find the ratio of the container to the book. ( units must be the same)

Vcontainer=length*width*height

Vcontainer=2400cm*900cm*800cm

Vcontainer=1,728,000,000cm^3

Vbook=length*width*height

Vbook=20cm*16cm*6cm

Vbook=1920cm^3

no books =Vcontainer/Vbook

no books =1,728,000,000cm^3/1920cm^3

no books=900,000 books

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Assoli18 [71]

Answer:

$9x+4x^2-5y$

Step-by-step explanation:

Hi there!

Length of the field: $14x-3x^2+2y$ units

Width of the field: $5x-7x^2+7y$ units

To find how much greater the length of the field is than the width, subtract the width from the length:

$14x-3x^2+2y-(5x-7x^2+7y)$

Open up the parentheses

$= 14x-3x^2+2y-5x+7x^2-7y$

Combine like terms

$= 14x-5x-3x^2+7x^2+2y-7y\\= 9x+4x^2-5y$

Therefore, the length is $9x+4x^2-5y$ units greater than the width.

I hope this helps!

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astra-53 [7]

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