Asked by Anonymous
The number of seats in a row has been increased at a rectangular-shape movie theater after renovation so that it is now five more than the total number of rows. How many rows are in in the theater, if its total seating capacity is 126 people now?
Answers
Answered by
oobleck
so, what do you know? If there are n rows, then
n(n+5) = 126
hint: 9*14 = 126
n(n+5) = 126
hint: 9*14 = 126
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