Asked by Markell Brown

The initial freshman class at a college is 10% smaller than last year’s class. But then during the first week of classes, 20 more students enroll. There are then 830 students in the freshman class.
Answered by mathhelper
number in last year's class ----- x
number in this year's class = .9x

after increase: number = .9x + 20

.9x + 20 = 830

solve for x

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