Candice leaves on a trip driving at 25 miles per hour. Four hours later, her sister Liz starts from the same location driving at 50 miles per hour. How long after Liz leaves home will she catch up to Candice? 9 hours

4 hours

7 hours

8 hours

The time that Liz will take to catch up with Candice after Liz starts is:

Step-by-step explanation:

We're gonna use the formula:

And we'll give a variable for each driven distance:

Now, Liz begins when four hours had passed, then, from the beginning of this exercise Candice's distance is:

Candice had a 100 miles lead when Liz started, so, the distances 1 hour after Liz began were:

When two hours have passed:

When three hours have passed:

And, when four hours have passed:

Then, Liz will catch up with Candice 4 hours after she leaves because after that time the distance traveled is the same for them.

the distance from any point on the parabola to the focus is the exact same as the distance from that point to the directrix.

if you could provide answer choices that might allow me to answer the question easier if my above answer isn't an option! (: