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Andreyy89
3 years ago
7

Last year, Kristen went bowling several times and earned an average score of 84 points. This year, she improved her score to an

average of 105 points. What is the percent of increase in Kristen's average score?
Mathematics
1 answer:
Viktor [21]3 years ago
8 0

Answer:

percentage increase in Kristen's average score is = 25%

Step-by-step explanation:

Given:-

- The last year score, Si = 84 points

- This year score, Sf = 105 points

Find:-

What is the percent of increase in Kristen's average score?

Solution:-

- We are to determine the percentage increase in Kristen's average score from last year.

- The relation to develop percentage increase "%inc" is given by:

                              %inc = \frac{Sf - Si }{Si}*100

- plug in the values:

                              inc = \frac{105 - 84 }{84}*100\\\\inc = 25

- The percentage increase in Kristen's average score is = 25%

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