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3 years ago

517.21 km what is the nearest 10km?

1 answer:

8 0

To round to the nearest 10, we must look at the tens and ones place (1 and 7). Because the ones place has a value greater than or equal to five, it rounds up.
Final answer: 520 km

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The average discharge at the mouth of the Amazon River is 4,900,000 cubic feet per second. How much water is discharged from the

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Answer: Average discharge at the mouth of the Amazon River in 1 hour = $1.764\times 10^{10}$ cubic feet

Average discharge at the mouth of the Amazon River in 1 year= $3.66912\times10^{13}$ cubic feet[/tex]

Step-by-step explanation:

Given : The average discharge at the mouth of the Amazon River =4,900,000 cubic feet per second.

i.e. The average discharge at the mouth of the Amazon River in 1 second= 4,900,000 cubic feet

Since 1 hour = 3600 seconds

Then , the average discharge at the mouth of the Amazon River in 1 hour =

$4900000\times3600=17640000000$ cubic feet

Since , there are 2080 hours in a typical year.

Then, the average discharge at the mouth of the Amazon River in 1 year=

$2080\times17640000000\\\\=36,691,200,000,000=3.66912\times10^{13}$ cubic feet

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2 years ago

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Step-by-step explanation:

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