zane98
zane98 zane98
  • 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?

Respuesta :

glslukasc23 glslukasc23
  • 20-03-2022
144 bc 180*(1-.2) = 144
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