HarleyQuinnLove HarleyQuinnLove

01-03-2015
Mathematics

contestada

What is the percent of increase from 25 to 35?
A.
10%

B.
29%

C.
40%

D.
71%

Respuesta :

01-03-2015

x - the percent increase

[tex]25+25x=35 \ \ \ |-25 \\ 25x=10 \ \ \ |\div 25 \\ x=\frac{10}{25} \\ \Downarrow \\ x=\frac{10}{25}=\frac{10 \times 4}{25 \times 4}=\frac{40}{100}=40\%[/tex]

The answer is C. 40% increase.

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