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A jacket is regularly priced at #$27.97#. It is on sale for 15% off. How much will you save during the sale?

Answer 1

Nathan Axel

See a solution process below:

This problem can be written as;

What is 15% of $27.97?

"Percent" or "%" means "out of 100" or "per 100", Therefore 15% can be written as #15/100#.

When dealing with percents the word "of" means "times" or "to multiply".

Finally, lets call the tip we are looking for "t".

Putting this altogether we can write this equation and solve for #t# while keeping the equation balanced:

#t = 15/100 xx $27.97#

#t = ($419.55)/100#

#t = $4.20#

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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.