casynlee6488
03.06.2020 •
Mathematics
You have been asked to set up chairs for the school concert.
The first row will have 10 seats, and each additional row has 4
seats more than the previous row. /(10 pts)
What is the total number of chairs needed to set up 25 rows?
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Ответ:
Step-by-step explanation:
middle section= 390
sides=270
total=930 chairs
Ответ: