in six months the membership at a fitness center went from 3,500 to 4,200. what was the percent of increase in the membership?
A:10%
B:15%
C:20%
D:16 out of 2 over 3%

please show work thank you!

Respuesta :

It is definitely C: 20%

Subtract the original value from the new value, then divide the result by the original value then multiply the result by 100 and it will give you the answer

[tex] \frac{4200 - 3500}{3500} \times 100[/tex]
[tex] \frac{700}{3500} \times 100[/tex]
[tex]0.2 \times 100 = 20\%[/tex]