Answer:1) 2n - 1
2) 99
see in the picture, u can see that the number of shaded in figures 1 through n will form an evenly spaced sequence with:
u(1) = 1
u(2) = 3
u(3) = 5
u(4) = 7
u(5) = 9
......
=> The above sequence has: u1 = 1
d = 2
=> u(n) = 1 + 2(n - 1) = 2n - 1
=> the number of shaded squares in the n figure is 2n - 1
b) the number of shaded squares in the 50th figure is 2.50 - 1 = 99
Step-by-step explanation:
30-24=6 6/30=0.2
0.2x100=20
20%
the 8 could be tens spot, Hundreds spot, Thousands ... till the end for karens spot
Step-by-step explanation:
Sorry if im wrong.
I think the answer is C. 1,320
Answer:
5:7
Step-by-step explanation:
150:210
50:70
5:7
(Ratio has been simplified)
