180/60=3
42/3 is 14
so 14 km per hour is your answer
Answer:
y = 1/3(x-5)
Step-by-step explanation:
To find the inverse of a function switch the x and y and then solve for y.
x = 3y + 5
x-5 = 3y
(x-5)/3 = y
Or
y = 1/3(x-5)
Answer:
second and fourth has real solution.
Step-by-step explanation:
hope this helps.
Answer:
Expected population in 2015: 19,152.58 or 19,000 people
Step-by-step explanation:
Given the decreasing rate of 2.5% per year, and a population of 28,000 in the year 2000:
We can solve for the rate of decrease by using the formula:

where:
A = population by year 2015
a = initial population (in year 2000) = 28,000
r = rate of change (decrease by 2.5% annually or 0.025)
t = time (in number of years) = 15
Plug in these given values into the formula:



A = 28,000(0.684)
A = 19,152.58 or about 19,000 people in 2015