Answer:
13/4 gallons will take her to travel 80 miles
Step-by-step explanation:
40miles ---------------- 13/8 gallons
first will need to get how many gallons will it take to travel 1 mile?
40miles ---------------- 13/8 gallons
1 miles ---------------- ? (x)
by cross multiplication = 40 * (x) = 1 * 13/8
40x = 13/8
therefore
=
/40
=
* 
x = 13/320
therefore, 1 miles ---------------- 13/320
80 miles ---------------- ? (x)
by also cross multiplying, 80 * 13/320 = 1 * (x)
therefore, x = 13/4 gallons
Answer:
The latest 2.5% of bills will be received in 20 more days after mail-out.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 31 days
Standard Deviation, σ = 6 days
We are given that the distribution of The number of days (X) is a bell shaped distribution that is a normal distribution.
Formula:


We have to find the value of x such that the probability is 0.025

Calculation the value from standard normal z table, we have,

Hence, the latest 2.5% of bills will be received in 20 more days after mail-out.
It's a nonlinear because the x and y values are not increasing at the same ratio each time. This would be an example of a linear function:
x l 1 2 3 4 5 6
y l 3 6 9 12 15 18
As x increases by 1, y increases by a multiple of 3