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ezzyandrade7
16.04.2021 •
Mathematics
Solve for missing unit (both 11 and 12 pls)
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Ответ:
Step-by-step explanation:
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Ответ:
Step-by-step explanation:
Given :
The Sahara Desert has an area of approximately 9,400,400 sq.km.
Depth = 150 m
To Find :Approximately how many grains of sand are in the Sahara Desert?
Solution:
Area of Sahara desert = 9,400,400 sq.km.
So,![9,400,400 km^2 = 1000000 \times 9400400 m^2](/tpl/images/0223/8057/f2cc5.png)
Volume of sand =![Area \times depth](/tpl/images/0223/8057/05293.png)
=![1.41006\times 10^{15} m^3](/tpl/images/0223/8057/3a50c.png)
So,![1.41006\times 10^{15} m^3 = 1.41006\times 10^{15} \times 1000000cm^3](/tpl/images/0223/8057/8708d.png)
1 cubic cm holds grains of sand = 8000
=![1.128048 \times 10^{25}](/tpl/images/0223/8057/0a128.png)
Hence
grains of sand are in the Sahara Desert