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3 years ago

Select ALL that apply: 21 days is equal to...

Mathematics

2 answers:

VMariaS [17]3 years ago

8 0

A Is The Correct answer

Sonbull [250]3 years ago

3 0

1 week is 7 days.

3 weeks = 21 days. Answer D. is correct.

A hour is 3600 seconds

24 hours ( a day ) is 86400 seconds

21 days is 1814400 seconds. * This is not an option *

Since 24 hours are in a day 24 hours x 21 days is 504 hours

Answer A. is correct

504 hours x 60 minutes per hour is 30240

Answer B. is correct. These are all the correct answers, A,B, and D.

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3 years ago

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Alex

Answer:

Step-by-step explanation:

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2 years ago

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3 years ago

I need to find x can someone please help

PIT_PIT [208]

Answer:

$\boxed{\boxed{\tt x=87^{\circ}}}$

Step-by-step explanation:

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$\tt x^{\circ}+37^{\circ}+56^{\circ}=180^{\circ}$

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4 0

2 years ago

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