Answer:
1.4
Step-by-step explanation:
10 decreased by 1.4 is 18.6
4+2x = x (x = student in smaller group)
4 + 2x + x = 28 (total # of students)
4+ 3x = 28
3x = 24
x = 8
8 students in the smaller group
4 + 2(8) = 20 students in the larger group
Supplementary angles sum up to 180°, suppose the supplement of 161° is x. Then
161+x=180
solving for x we subtract 161 from both sides
161-161+x=180-161
x=19
thus the supplement is 19°
X= 3/2 you multiply the inverse (9/8) and then you probably know what to do
T(s(x)) = -5
Substitute the value in for x and evaluate = -2
