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The price of an item was increased twice by the same percent. By what percent was the second increase if the item became 1.44 times more expensive?

Please help!!!!!!

Respuesta :

thomasin
First, let's write this as an equation.

[tex]f(x)=[/tex] price of an item

[tex]p=[/tex] percent increase

[tex]f(x)=xp^2[/tex]

[tex]1.44x=xp^2[/tex]

[tex]1.44=p^2[/tex]

[tex] \sqrt{ 1.44}= \sqrt{p^2 [/tex]

[tex]p=1.2[/tex]

[tex]1.2=120[/tex]%

Answer: The second price was a [tex]120[/tex]% of the first price which means that the second increase was 20% more than the first price.

Hope this helps!

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