90 is 1/10 of what?

Answer 1

Eli Assouline

90 is 1/10 of 900.

Let's call the "what" we are looking for #w#.

In math the term "of" means to multiply or times.

And, the term "is" is the same as equals or "=".

We can therefore rewrite this problem as:

#90 = 1/10 xx w# and solve for #w#

To solve for #w# multiple each side of the equation by #10# to isolate #w# and keep the equation we have written balanced:

#10 xx 90 = 10 xx 1/10 xx w#

#900 = 10/10 xx w#

#900 = 1 xx w#

#900 = w#

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Answer 2

Jace Anderson

90 is 1/10 of 900.

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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.

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