Answer: i will help you the best that I can! :)
The circumference of the circle formula is 2πr or πd.
We will use πd since we know the diameter.
C = πd
C = (3.14)(16)
C = 50.24
Hope this helps :)
Answer:37.2 sec
Step-by-step explanation:
Given
Joel takes 81 sec for 14 mile long track
speed of joel
mi/min=10.37 mi/min
Jason takes 69 sec for 14 mi track
so jason speed is ![\frac{14}{1.15} mi/min=12.17 mi/min](https://tex.z-dn.net/?f=%5Cfrac%7B14%7D%7B1.15%7D%20mi%2Fmin%3D12.17%20mi%2Fmin)
if both starts from same spot in opposite direction then
![\frac{x}{10.37}=\frac{14-x}{12.17}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B10.37%7D%3D%5Cfrac%7B14-x%7D%7B12.17%7D)
where x is distance covered by Joel
then x=6.44 miles
therefore time required
![t=\frac{6.44}{10.37}=0.621 min\approx 37.2 sec](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B6.44%7D%7B10.37%7D%3D0.621%20min%5Capprox%2037.2%20sec)