Hourly Earnings The average hourly wages (in dollars) for private industry employees in the united states from 1990 through 2009 can be modeled by
w = 10.2e0.0315t
where t = 0 corresponds to 1990.
(a) What was the average hourly wage in 2000?
(b) In what year will the average hourly wage be $23?

Respuesta :

Answer:

a) Average hourly wage in 2016 is $13.98

b) In year 2006, the average hourly wage be $23.

Step-by-step explanation:

We are given the following in the question:

[tex]w(t) = 10.2e^{0.0315t}[/tex]

where t = 0 corresponds to 1990.

a) average hourly wage in 2000

For year 2000, we put t = 10

Putting the values, we get,

[tex]w(10) = 10.2e^{0.315}\\w(10) = 13.98\$[/tex]

Average hourly wage in 2000 is $13.98

b)  year in which the average hourly wage be $23

Putting the values we get,

[tex]23 = 10.2e^{0.0315t}\\\\t = \displaystyle\frac{1}{0.0315}\ln \bigg(\frac{23}{10.2}\bigg)\\\\t = 25.81\approx 26[/tex]

Thus, in year 2016, the average hourly wage be $23.