Answer:
A∣=3(8−7)+1(−2−4)=3−6=−3
co-factor matrix =
⎣
⎢
⎡
−1
5
3
−4
23
−11
1
−6
⎦
⎥
⎤
Adj.A=
12
A
=
∣A∣
40*18 = 720
1st box 720
2nd box 40
They won't ever be the same at the same time.
explanation:
Add 2 to 150 and subtract 3 from 175 till you hit a common number at the same month
150, 152, 154, 156, 158, 160, 162
175, 173, 170, 169, 166, 163, 160
seeing as they have already passed each other, its not possible for the numbers to be the same at the same time.
