Answer :
[tex]x-price\ of\ MP3\ player\\28\%=0.28\\100\%=1\\\\From\ proportion:\\\\0.28\ \ \ -\ \ \ 36\\1\ \ \ \ \ \ \ \ -\ \ \ x\\\\0.28x=36\ \ \ |:0.28\\x=128.57\\\\Mp3\ player\ cost\ \$128.57[/tex]
The price of the mp3 player is $128.57 .
Given,
Stacia saved $36 in purchase of mp3 player.
Let the total price of mp3 player be x dollars.
According to the question, 28% of the total price is $36. so in equation form we can write it as follows,
[tex]28 \%\ of \ x =36[/tex]
[tex]\dfrac{28}{100} \times x=36\\\\x=\dfrac{36\times 100}{28}[/tex]
[tex]x=\dfrac{900}{7}[/tex]
[tex]x=128.57[/tex]
Hence the total price of the mp3 player is $128.57 .
For more details on percentage calculation follow the link:
https://brainly.com/question/8011401
