Within 3 hours, the temperature in Oceanside falls by 8 degrees. If the temperature is now at 67 degrees Fahrenheit, what was the temperature 3 hours ago?

Step-by-step explanation:

Given

If the temperature falls by in 3 hours

Present temperature is

The difference in temperature i.e.  

Temperature 3 hours ago is

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.