Answer:14
Step-by-step explanation:
2:3
14:21
in 14 their is 2 7's
in 21 their is 4 7's
A) 3x + 4 = 5x - 10. It's easy to identify the lines' equations by their y-intercept and slope.
The would be something about 1779556
(hope this helps)
Answer:
99.7% of customers have to wait between 8 minutes to 30 minutes for their food.
Step-by-step explanation:
We are given the following in the question:
Mean, μ = 18 minutes
Standard Deviation, σ = 4 minutes
We are given that the distribution of amount of time is a bell shaped distribution that is a normal distribution.
Empirical Formula:
- Almost all the data lies within three standard deviation from the mean for a normally distributed data.
- About 68% of data lies within one standard deviation from the mean.
- About 95% of data lies within two standard deviations of the mean.
- About 99.7% of data lies within three standard deviation of the mean.
Thus, 99.7% of the customers have to wait:

Thus, 99.7% of customers have to wait between 8 minutes to 30 minutes for their food.
Step-by-step explanation:
Area of triangle = 1/2 . base . height