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jay has a pet grooming business. in 2010, he groomed 200 dogs. in 2011, he groomed 450 dogs. what was the percent increase in the number of dogs groomed

Respuesta :

The way you figure out percent increase is you take the final number, divide it by the original number, and then subtract 1 from the result.  

Therefore, in this question, take the final number of 450, divide it by the original number, 200, and then subtract 1.

450 ÷ 200 - 1 =
2.25 - 1 =
1.25

1.25 is the same thing as 125%, so Jay increased the number of dogs he groomed by 125%.  

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