3 years ago

Which pair of numbers is relatively prime?

1 answer:

8 0

The answer is C)

The numbers are relatively prime if there is no common factor that divides both of them apart from 1. A) isn't answer because 3 is one of common factors. B isn't answer because 13 is common factor. and D isn't answer because 7 is common factor.

Therefore only 10 and 31 have no common factors other than 1

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The half-life of Carbon-14 is 5730 years. Suppose a fossil is found with 50% of Carbon-14 as compared to a living sample. How ol

wlad13 [49]

Answer:

The answer is A.

Step-by-step explanation:

Because it takes 5730 years for half of a sample of carbon-14 atoms to decay. It says that 50% of the carbon atoms have decayed so that means that 5730 years have elapsed for that fossil.

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3 years ago

Read 2 more answers

Write the following proportion using colons. 7 is to 21 as 3 is to 9.

eduard

This is how proportion is written 7:21=3:9. The colons are sign of division so it can be shown in the terms of fraction as 7/21=3/9 or 1/3=1/3

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3 years ago

Carlos worked 31.5 hours at a hospital as a volunteer. This represents 87.5% of his school’s requirement of community service. H

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