To represent the scenario, we first define our variables:
- Let \( x \) be the time in hours that Carolina is traveling.
- The distance she travels can be calculated as speed times time, so the distance is \( 55x \) miles.
- She starts 15 miles from home and needs to travel to a location 185 miles away, meaning she needs to cover a total distance of \( 185 - 15 = 170 \) miles.
The equation can be set up as follows:
\[ 55x = 170 \]
Now, we can solve for \( x \):
\[ x = \frac{170}{55} \approx 3.09090909 \]
Rounding to the nearest tenth, \( x \approx 3.1 \) hours.
Thus, the equation representing her travel is \( y = 55x + 15 \), and it will take Carolina approximately 3.1 hours to reach her location.
So the correct response is:
y=55x+15; 3.1 hours