Answer: -11.47 + 3.7s
-3.7(3.1-s)
-3.7*3.1-3.7*(s)
-11.47 + 3.7s
Your choices A and C are the same
but the decimal of 1/11 is 0.090909
so your answer would be 2.09
C
a ratio of 5 : 5 simplifies to 1 : 1, which basically means we require the midpoint of the line segment
using the midpoint formula
M = [
(0 + 20 ),
(15 + 0)] = (10, 7.5 )
It sounds like initially we have a total of 18*5 = 90. Then we are adding 5 + 4 +3 +2 +1 to this.
so that gives us 105.
105/5 = 21