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Enrollment in the school orchestra was 340 last year. This year, it dropped 15%. What is the enrollment this year? If enrollment increases 15% next year, what will the enrollment be? Round to the nearest whole number.

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thomasin
340(.15)=51        15% of 240 students is 51 students

340-51=289        THIS YEAR 289 STUDENTS ENROLLED

289(.15)=43.35    NEXT YEAR THE ENROLLMENT WILL BE APPROXIMATELY 43%
SweetSmart04
This year the enrollment is 51. (340 x 0.15 = 51) 
If you go off of the 340 enrollment for the year after next year, you answer is 2,266.6666 (repeating) I would round that off to 2,267. (340/0.15 = 2,266.666 which is about 2,267)
If you go off of 51, your answer would be 340. (51/0.15 = 340)

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