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Regina charges c dollars per hour to babysit. If she increases her rate by 15%, which expression represents her new rate, in dollars per hour?

Answer 1

Eva Adamson

The expression is #=C +(15C)/100#

Already her charge is #C#. She increased her charges by 15%. So She will charge #C# and #15%# of #C#. Hence -

The expression is #=C +(15C)/100#

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Answer 2

Julia Adams

The expression representing Regina's new rate, in dollars per hour, after increasing her rate by 15% is: ( c + 0.15c ), which simplifies to ( 1.15c ).

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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.