Posted by arzam on Saturday, November 9, 2013 at 2:52am.
A television costs 270.25 dollars including 15% tax. How much of the cost is tax?

maths  Steve, Saturday, November 9, 2013 at 5:18am
270.25(1  1/1.15) = 35.25

maths  arzam, Saturday, November 9, 2013 at 11:25am
But where does the (11) from (11/1.15) come from?

maths  Steve, Saturday, November 9, 2013 at 11:41am
1.15p = 270.25
p = 270.25/1.15 = 235
270.25235 = 35.25
so,
35.25 = 270.25  270.25/1.15 = 270.25(11/1.5)

maths  Jai, Thursday, September 3, 2015 at 8:36am
But where does the 1.15 p come from
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