The art teacher needs 70 markers for her classes. The markers come in packages of 15. How many packages of markers will the art
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Let the number of rows be = r
Let the number of seats per row be = s
we know that the number of seats is 126.
So, ..... (1)
As given, there are five more seats per row than the number of rows, so we can say that:
Putting this in equation (1)
r=-14 and r=9 (neglecting the negative value) we get r=9
And s=r+5
so, s =9+5=14
Hence, there are 5 rows and 14 seats per row.