Is 25 a multiple of 2 or 5? How do you know?

Answer 1

#25# is a multiple of only #5#, not #2# but see below for a better explanation.

Multiples of 5 always end with a #5# or a #0# and multiples of 2 always end with a even number or #0#.
Since #25# ends with #5#, it 25 is a multiple of 5!

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Answer 2

#25# is a multiple of #5#. See Below for Explanation:
Also any multiple of #2# would be even but #25# is odd so #2# can not be a factor of #25#.

Simply list out the multiples of #2# and #5# first. See below:
Multiples of #5# include: #5#, #10#, #15#, #20#, #25#, #30#, #35#, and etc.
Multiples of #2# Include: #2#, #4#, #6#, #8#, #10#, #12#, #14#, #16#, #18#, #20#, #22#, #24#, #26# and etc.
As we can see, the multiples of #2# skip the number #25# so we can immediately assume that #25# is not a multiple of #2#. Therefore it must be a multiple of #5#.

And this makes sense right?

#5+5+5+5+5=25#.
#5^2=25#.
#5*5=25#.

Whatever way you want to think about it works.

Answer: #5# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Foot note:

Any multiple of 2 is even. However 25 is odd so it can not be a multiple of 2.

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Answer 3

From the last digit.

From 1 and 2 :

25 has last digit 5

=> 25 is divisible by 5

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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