The tree is 19.55 meters tall.
Step-by-step explanation:
Shadow of tree = 20.7 meters
Height of tree = x
Hiker's shadow = 1.8 meters
Hiker's height = 1.7 meters
Using proportion
Shadow of tree : Height of tree :: Shadow of hiker : Height of hiker
![20.7:x::1.8:1.7](https://tex.z-dn.net/?f=20.7%3Ax%3A%3A1.8%3A1.7)
Product of mean = Product of extreme
![20.7*1.7=1.8*x\\35.19=1.8x\\1.8x=35.19](https://tex.z-dn.net/?f=20.7%2A1.7%3D1.8%2Ax%5C%5C35.19%3D1.8x%5C%5C1.8x%3D35.19)
Dividing both sides by 1.8
![\frac{1.8x}{1.8}=\frac{35.19}{1.8}\\x=19.55](https://tex.z-dn.net/?f=%5Cfrac%7B1.8x%7D%7B1.8%7D%3D%5Cfrac%7B35.19%7D%7B1.8%7D%5C%5Cx%3D19.55)
The tree is 19.55 meters tall.
Keywords: ratio, proportion
Learn more about ratios at:
#LearnwithBrainly
Answer:
Hi there!
Your answer is:
c= -b + (2A)/H
First: Multiply both sides by 2
A= 1/2 (b+c)h
× 2
2A = (b+c)h
Next, divide both sides by h
2A/H = b+c
Finally, subtract b
2A/H -b = c
Hope this helps
Step-by-step explanation:
9x+2=6
9x+2-2=6-2
9x=4
9x/9=4/9
x=0.44