Answer:
Step-by-step explanation:
40n + 30 = -170
40n + 30 = -170
40n = -200
n = -5
Answer:
The 
value is 
.
Step-by-step explanation:
This is a right-tailed test.
The null and alternative hypothesis is
Point estimate 
sample proportion
Test statistics
C because the second quadrant is the top left of the graph so it has to be -x and positive y
Simply simplification...
1/3, my friend is the most basic simplification.
or 5/15, 10/30, 2/6, etc, etc...
Answer: 0.6 in 10 % ; 0.4 in 15 %
Step-by-step explanation:
1. (x*10%) + (y*15%)/ x+y=12%
2. x+y = 1 x= 1-y
(0.1x + 0.15y/ x+y= 12/100) * 100
(10x + 15y/x+y = 12)*(x+y)
10x+15y= 12x + 12y
-2x=-3y
2x = 3y 2(1 - y)= 3y
2-2y=3y 2= 5y
y= 0.4
x= 0.6
