Victoria141516
Victoria141516 Victoria141516
  • 19-05-2020
  • Mathematics
contestada

A book costs $25. It goes on sale for $19. What is the percent of decrease?

Respuesta :

AnastaziaK
AnastaziaK AnastaziaK
  • 19-05-2020

Answer:

31.5789%

Step-by-step explanation:

Answer Link
faceofgrace6
faceofgrace6 faceofgrace6
  • 19-05-2020

Answer:

24%

Step-by-step explanation:

If you use the "is over of" form.

"19 is what percent of 25"

You'd set it up like this:

[tex]\frac{19}{25}[/tex]=[tex]\frac{x}{100}[/tex]

Then cross multiply:

19 times 100 = 1900

25 times x = 25x

Divide 25 into 1900 and get 76.

That is the percent (%) of what 19 is of 25.

BUT we want the space in between the numbers.

To get that, we subtract 100 - 76.

(100 is the whole 100%)

This gives you 24%

Answer Link

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