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In 2004, there were approximately 275 students in the Delaware High School band. In 2010, that number increased to 305. Find the annual rate of change in the number of students in the band.
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In 2004, there were approximately 275 students in the Delaware High School band. In 2010, that number increased to 305. Find the annual rate of change in the number of students in the band.

User Bqsj Sjbq
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305-275=30
Since there is a difference of 6 yaers between 2010 and 2004, you devide 30 by 6 which equals to five. Therefore each year there was an increase of 5 students in the band.
User Tomohiro
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