Brainliest* and show work and the answer to number 15
1 answer:
You might be interested in
Answer:
d = 6.246 m
Step-by-step explanation:
Given that,
The distance around a circular pool is 39.25 m.
We need to find how does the lifeguard have to walk from the edge of the pool to the centre of the pool. It means we need to find the radius r of the circle.
ATQ,
Circumference = 2πr = 39.25 m
r is radius
So, the required distance is 6.246 m.
Let the time taken by 2nd computer be = x
Time taken by first computer = 60 seconds
Total time taken by both = 40 seconds
So, equation becomes:
Solving this we get,
x=120 seconds
Hence, the 2nd computer will take 120 seconds to finish a search alone.