physics
posted by sammy .
Ilya and Anya each can run at a speed of 7.80 and walk at a speed of 3.20 . They set off together on a route of length 5.00 . Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half.
Part A
How long does it take Anya to cover the distance of 5.00 ?
Express your answer numerically, in minutes.
Part B
Find Anya's average speed.
Express Anya's average speed numerically, in miles per hour.
Part C
How long does it take Ilya to cover the distance?
Express the time taken by Ilya numerically, in minutes.
Now find Ilya's average speed.
Express Ilya's average speed numerically, in miles per hour.

PART A  63.7 minutes
PART B 4.71 mph
PART C 52.2
PART D 5.75
Respond to this Question
Similar Questions

Math
A man walks a certain distance at a certain speed. If he walks 1/2 an hour faster than his usual speed, he will take one hour less to reach his destination. But if he walks 1 km an hour slower than his usual speed, he will take 3hours … 
Physics
A person walks 3.0847x10^1 m East, then turns around and walks 8.677x10^0 m West. The total time to walk this distance was 7.8624x10^2 s. What is the speed of the walker, expressed to 3 significant figures? 
Physics
A person walks 8.4522x10^1 m East, then turns around and walks 7.8409x10^1 m West. The total time to walk this distance was 8.7343x10^2 s. What is the speed of the walker, expressed to 3 significant figures? 
Physics
Tyler runs the length of a soccer field (100m). A. How much time is required for him to run the full length at speed v? 
Physics
Tim and Rick both can run at speed Vr and walk at speed , Vw with Vr > vw. They set off together on a journey of distance . Rick walks half of the distance and runs the other half. Tim walks half of the time and runs the other half. … 
Physics: Vectors
A hiker walks 10.0 km[NE], 5.0 km[W], and then 2.0 km[S] in 2.5 h. (a) What is the hiker's displacement? 
Physics
The artist Anya Calderona constructs the mobile shown in the figure.(Figure 1) In the illustrated configuration, the mobile is perfectly balanced. Assume the strings and crossbars are massless. If Anya decides to make the star twice … 
Alebra
need to solve a word problem using linear equation in slope form. Ben walks 3 miles per hour, and runs at 6 miles per hour. Runs and walks a total of distance of 210 miles per week. Is this correct 210 = 3/6m +b  equation to show … 
math
Benjamin and Bob are marathon runners on a run from landmarks P to Q. Benjamin runs half the way and walks the other half. Bob runs half the time, and walks the other half. The two run at the same speed and walk at the same speed. … 
Physics (Help Plz)
Ilya and Anya each can run at a speed of 8.00 mph and walk at a speed of 3.50 mph . They set off together on a route of length 5.00 miles . Anya walks half of the distance and runs the other half, while Ilya walks half of the time …