Why did you circle all of them ?
Answer:
80,000,000>20,000
Step-by-step explanation:
10^7 is 10,000,000
10,000,000 x 8 = 80,000,000
10^4 is 10,000
10,000 x 2 = 20,000
80,000,000>20,000
Answer:
The sample proportion is 0.158.
Step-by-step explanation:
In a confidence interval of proportions, we have the lower bound and the upper bound of the interval. The sample proportion is the halfway points between these bounds, that is, the sum of these bounds divided by 2.
In this problem, we have that:
Lower bound: 0.142
Upper bound: 0.174
Sample proportion: (0.142+0.174)/2 = 0.158
The sample proportion is 0.158.
Let y be train 1 and x train 2
y= 60mph+x
8-4 = 4 hours
((60+x)+x)4=(x+2)
(60+2x)4=(x+2)
