Answer:
2 - 1+5=6
Step-by-step explanation:
Well, ratios are basically fractions. There are 12 boys, so the ratio is 12/25. Since 25 - 12 is 13, there are thirteen girls, so the ratio of girls to student is 13/25.
Answer:
Cyclist A
Step-by-step explanation:
given,
velocity of Bicyclist A = 17 mil/hr
acceleration = 32 miles/hr²
velocity of Bicyclist B = 20 miles/hr
acceleration = 2 miles/hr²
which cyclist in front after = 15 minutes = 1/4 hour
using equation of motion for cyclist A
![s = ut +\dfrac{1}{2}at^2](https://tex.z-dn.net/?f=s%20%3D%20ut%20%2B%5Cdfrac%7B1%7D%7B2%7Dat%5E2)
![s = 17 \times \dfrac{1}{4} +\dfrac{1}{2}\times 32 \times 0.25^2](https://tex.z-dn.net/?f=s%20%3D%2017%20%5Ctimes%20%5Cdfrac%7B1%7D%7B4%7D%20%2B%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%2032%20%5Ctimes%200.25%5E2)
s = 5.25 mile
using equation of motion for cyclist B
![s = ut +\dfrac{1}{2}at^2](https://tex.z-dn.net/?f=s%20%3D%20ut%20%2B%5Cdfrac%7B1%7D%7B2%7Dat%5E2)
![s = 20\times \dfrac{1}{4} +\dfrac{1}{2}\times 2 \times 0.25^2](https://tex.z-dn.net/?f=s%20%3D%2020%5Ctimes%20%5Cdfrac%7B1%7D%7B4%7D%20%2B%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%202%20%5Ctimes%200.25%5E2)
s = 5.0625 mile
Cyclist A will be in-front after 15 minutes