Depending on the size of the track but from what I know, they are normally 400 meters for 1 lap. All you need to do is 5000 divided by 400 which is 12.5 so 5000 meters is 12 and a half laps around the track.
4/5*1/2=2/5 that is your answer
Answer:
Step-by-step explanation:
Lets call 
the the still-air speed of the plane and 
the speed of the wind. On the first part the speed of the plane relative to the ground will be 
, and on the second part it will be 
.
We know that the distance d=400 miles on the first and second parts are the same, so by the definition of velocity we will have:
Or:
Adding both equations:
Which for our values is:
If instead of adding, we substact, we would have:
Which for our values is:
Answer:
11 cats
Step-by-step explanation:
I did trial and error.
I started with 16 cats and 17 dogs, so:
(16x$2.5) + (17x$4.5) = $116.5
The value is too low which means that they spent more money on the expensive side (i.e., dogs).
I ended up with 11 cats and 22 dogs, so:
(11x$2.5) + (22x$4.5) = $126.5
