Answer:
95% Confidence interval: (0.8449,0.9951)
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 50
Number of times the dog is right, x = 46
95% Confidence interval:
Putting the values, we get:
(0.8449,0.9951) is the required 95% confidence interval for the proportion of times the dog will be correct.
6X + 10 Y = 240
Rewriting this in slope intercept form
10y = -6x+240
y = -6/10x + 240/10
y = -.6x + 24
We know that x and y cannot be less than 0
The y intercept is 24 and the x intercept ( where y=0) is 40
To find the x intercept let y = 0
0 = -.6x + 24
-24 = -.6x
-24/.6 = -.6x/-/6
40 =x
If the budget is reduced by 25%, that means 240 is 25% less or 75% of the original value
75% of 240 = .75*240 or 180
6x+10y = 180
10y = -6x+180
y = -.6x+18
The y intercept is 18 and the x intercept is 30
If the price of x doubles
6 will become 12
12x+10y = 240
10y = -12x + 240
y = -1.2x +24
The y intercept is 24 and the x intercept is 20
If the price of y falls to 8
6x+8y = 240
8y = -6x+240
y = -6/8x + 240/8
y = -.75x + 30
The y intercept is 30 and the x intercept is 40
Answer:
(5r - 20)
Step-by-step explanation:
(3r + 14) + (Ar + B) = (8r - 6)
B = -6 - 14 = -20
A = 8 - 3 = 5
He was there for 3 hours.
Explanation:
160-55=105
105 divided by 35 to find the number of hours.
I hope this helps you
72/75=0.96