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4 years ago

the volume of a rectangular pyramid is 4000 cubic ft. the area of the bases 40 sq ft. what is the height of the pyramid

Mathematics

1 answer:

Sidana [21]4 years ago

3 0

1,000 cubic feet because the pyramid is 4000 cubic feet on an area base of 40.

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If three quarters of a number decreased by twenty is equal to eighty two, what is that number?

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A number is :

$x$

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Three quarters of it means :

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Decrease by 20 means :

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Equals to 82 means :

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What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

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