Question #fdde5

1 Answer
Mar 18, 2017

Answer:

$47.49 rounded to 2 decimal places

Explanation:

#color(blue)("Preamble")#

The % symbol is a bit like a unit of measurement but one that is worth #1/100#

So #6% ->6xx%->6xx1/100=6/100#
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#color(blue)("Answering the question")#

This is a shortcut approach. However the explanation makes it longer than doing the actual calculation.

Multiply by 1 and you get the original value. So multiply by #(1+6%)# and you get the increased value.

#$44.80(1+6%) ->$44.80(100/100+6/100)->$44.80(106/100) #

#=$47.488# as an exact value

This $47.49 rounded to 2 decimal places
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You should go strait to: #$44.80(106/100) #