Question #f33a4

1 Answer
Sep 28, 2017

#$1.17#

Explanation:

Let's let #x# be the original cost of the apple.

Translating the words to an equation:

#x(1.1543)=1.35#

#x=1.35/1.1543=$1.17#

#15.43%# in decimal is #0.1543#. Since the question says the price went up and they gave us the total cost, we multiply by #1+0.1543#.

On the the hand, if they said the price went down by #15.43%#, we would multiply by #1-0.1543# or #0.8457#.