Question

cost of hat: $10.50
Markup:10%
Discount:40%
Tax:5%
help please with the simple interest formula.

Answer 1

\[10.50\times (1.10)\times (.60)\times (1.05)\]
\(1.10\) gives the 10% markup,
\(.60\) takes off 40% and
\(1.05\) increases by 5%

Answer 2

where do you get the decimals from?

Answer 3

10% =.1
5%=.05
40%=.4

Answer 4

to increase a number by 10% you are taking 110% of a number, i.e. 1.10
to decrease a number by 40% you are taking 60% of that number, i.e. .6

Answer 5

so would it be $10.50(1.10)(1.4)(1.05)=16.97 ?

Answer 6

no because the 40% decrease should mean multiply
by \(100\%-40\%=60\%=.6,\) not 1.4

Answer 7

hence my first post of
\[10.50\times (1.10)\times (.60)\times (1.05)\]

Answer 8

one more question lol. do we always subtract by 100 with the discount? & thank you very much for your help. really appreciate it, it's helping me alot.

Answer 9

@satellite73