A cell membrane has a thickness of about 7 nm. How many cell membranes would it take to make a stack 2.3 in high?

There are 8345714 cell membranes.

Explanation:

It is given that,

The thickness of a cell membrane is 7 nm

We need to find the number of cell membranes would it take to make a stack 2.3 inches high.

Firstly, the units must be same i.e. converting 2.3 inches to m

1 inch = 0.0254 m

2.3 inches = 0.05842 m

Let there are n number of cell membranes. So,

or

n = 8345714 cell membranes

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explanation:

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