Answer:
2485
Step-by-step explanation:
The number of seats in row n is given by the explicit formula for an arithmetic sequence:
an = a1 +d(n -1)
an = 20 +3(n -1)
The middle row is row 18, so has ...
a18 = 20 + 3(18 -1) = 71 . . . . seats
The total number of seats is the product of the number of rows and the number of seats in the middle row:
capacity = (71)(35) = 2485
The seating capacity is 2485.
Answer: (x-9)(x+1), so x=9 and x=-1
Step-by-step explanation:
X^2-8x-9=0
-9 times 1 = -9 and -9 plus 1 = -8
So (x-9)(x+1)
X=9, x=-1
Answer:I would do the same thing which is copy and paste because its very
difficult to find out how to do it but ill keep trying
Step-by-step explanation:
Answer:
£500=€625
Step-by-step explanation:
£412=€515
=> £1=€515/412
=> £1=€1.25
<u>For £500</u>
£500=€(1.25 x 500)
=> £500=€625
