Respuesta :

Answer:

The price of the MP3 player after adding discount and tax on the market price is $ 22.35

Step-by-step explanation:

The Market price of MP3 player = m. p = $ 29.99

The discount percentage on the player = 20 %

The tax added to cost price = 6.8 %

Let The selling price of player = s.p

Now, From discounted method

Discount % = [tex]\dfrac{m.p - s.p}{m.p}[/tex] × 100

or, 20 = [tex]\dfrac{29.99 - s.p}{29.99}[/tex] × 100

or,  [tex]\dfrac{20}{100}[/tex] =  [tex]\dfrac{29.99 - s.p}{29.99}[/tex]

or, [tex]\dfrac{20}{100}[/tex] = 1 - [tex]\dfrac{s.p}{29.99}[/tex]

or, [tex]\dfrac{s.p}{29.99}[/tex] = 1 - [tex]\dfrac{20}{100}[/tex]

Or, [tex]\dfrac{s.p}{29.99}[/tex] = [tex]\dfrac{100 - 20}{100}[/tex]

or, [tex]\dfrac{s.p}{29.99}[/tex] = [tex]\dfrac{80}{100}[/tex]

∴ s.p =  [tex]\dfrac{80}{100}[/tex] × 29.99

or, s.p = 23.99

So, selling price = s.p = $ 23.99

Now, Again tax added = 6.8 %

So, The price final price of the player after adding tax = $ 23.99 - 6.8 % ×23.99

Or, The price final price of the player after adding tax = $ 23.99 ( 1 - [tex]\dfrac{6.8}{100}[/tex] )

Or,  The price final price of the player after adding tax = $ 23.99 × 0.932

Or,  The price final price of the player after adding tax = $ 22.35

Hence The price of the MP3 player after adding discount and tax on the market price is $ 22.35 Answer