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emma3216
23.01.2021 •
Mathematics
Use the diagram to answer each of the following questions
-Write the expressions for x and y in terms of k
-Write the expression for w in terms of k
-Write the expression for z in terms of k
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Ответ:
Step-by-step explanation:
There are approximately 7.5 × 10¹⁸ grains of sand on earth.
There are approximately 7 × 10²⁷ atoms in an average human body.
A. There are more atoms in an average human body. When comparing the order of magnitude of each number 27 it greater than 18.
7 × 10²⁷ > 7.5 × 10¹⁸
B. Now we will calculate how many times more atoms are in a human body compared to grains of sand on earth.
=![\frac{7}{7.5}\times \frac{10^{27}}{10^{18}}](/tpl/images/0179/7531/bc018.png)
≈ 1 × 10²⁷⁻¹⁸
≈ 1 × 10⁹
≈ 10⁹
There are approximately 1,000,000,000 atoms more in a human body compared to the grains of sand on earth.