Do a ratio tall over shadow. How tall is tree / shadow. How tall is person / shadow then cross multiply. X/7.5 =5/3. 37.5=3x. Divide by 3 answer 12.5
Answer:
answer=30
Step-by-step explanation:
by taking the length as x
1 millimetre = 10 metres
3 millimetres = x
10×3= 30 metres
HOPE THIS HELPS
Answer:
There are 60 permutations that can be formed from the first five letters of the alphabet.
Step-by-step explanation:
The number of three letter permutations that can be formed from the first five letters of the alphabet is
.
![5P_{3} =\frac{5!}{(5-3)!}](https://tex.z-dn.net/?f=5P_%7B3%7D%20%3D%5Cfrac%7B5%21%7D%7B%285-3%29%21%7D)
![=\frac{5!}{2!}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B5%21%7D%7B2%21%7D)
= 60
Hence, there are 60 permutations that can be formed from the first five letters of the alphabet.
In the hundreds spot is a 2 and 2 is under 5 so we round down which would be 4 398 200