Number of seats = 42
Seats per row x row = 1302
s x r = 1302
rows + 11 = seats per row
r + 11 = s
s x r = 1302
(r + 11) x r = 1302
r^2 + 11r = 1302
r^2 + 11r - 1302 = 0
(r + 42) x (r - 31) = 0
r = -43 or 31
Cannot have negative rows so the number of rows is 31, and the number of seats per row is 31 + 11 = 42
Check: 31 x 42 = 1302 :)
The third one because it passes the vertical line test
1st add 7 to both sides : 3z = 21, 2nd divide both sides with 3: z = 7
1/6 / 1-3/8
make mixed fractions= 1/6, 11/8
keep change flip
1/6 X 8/11
times across
8X1=8
6X11=66
8/66
reduce
8/2=6/3=2
66/2=33/3=11
answer:2/11
