Natalie was running a race with her friend. Natalie's friend ran 23 miles of the race. Natalie ran 12 mph slower than her friend. If Natalie's friend ran the race in 3 hours, and 12 minutes, how fast did Natalie run the race? Pls show your work and I'll mark you as BRAINLIEST.
Answers
Answer:
Step-by-step explanation:
The question, as stated, does not have a sensible answer.
23 miles in 3 hours 12 minutes, or 3.2 hours, comes to 7.1875 mph.
Natalie ran 12 mph slower than this, or -4.8125 mph. I suppose that she could have run in the opposite direction, and this might make some sort of sense if the race was on a circular track. Bear in mind, though, that 12 mph is closer to a sprint speed for humans, while 4mph is more like brisk walking pace.
Answer:
≈ 3 hrs 50 mins
Step-by-step explanation:
Distance- d=23 miles
Natalie's speed- 1.2 mph slower than her friend (note. probably typo in question- 12 mph is too much)
Friend's speed- f
Friend's time in race- t=3 hrs 12 min = 3 12/60= 3 2/10= 3.2 hrs
Let's find friends speed first:
f= d/t= 23/3.2=7.1875 mph
Natalie' speed= 7.1875 - 1.2= 5.9875 mph
Natalie's time in race = 23/5.9875 ≈ 3.84 hrs ≈ 3 hrs 50 mins