20-03-2022
Mathematics

contestada

This year, the number of seventh graders at a middle school has increased by 20% (on top of the number of seventh grader last year). there are now 180 seventh graders. What was the number of seventh grader last year?

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glslukasc23 glslukasc23

20-03-2022

144 bc 180*(1-.2) = 144

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