Evan and two friends are driving to a campground 165 mi. from home. Assuming they drive at a constant speed, what rate of speed will get them there in 3 hr.? A. 40 mph
B. 45 mph
C. 50 mph
D. 55 mph

D

Step-by-step explanation:

If you divide 165 by 3 you get 55. So, If you need to get home in 3 hours you would have to divide the miles to get you home by the time to get there. So then you divide 165 miles/ 3 hours = 55 mph. Hope this helps, let me know if correct, and have a great day!!

I'm assuming you mean to say that the clock already showed 10 seconds when she started the race.

It took her 5 seconds to run 100 meters since 15-10 = 5.

To find her speed, divide 100 over 5 to get 100/5 = 20 meters per second

20 meters per second is approximately equal to 44.7387258 miles per hour.

Something seems really off because the fastest record speed for a human runner was around 28 mph. Though of course, this is just a hypothetical math problem.