Answer:
BC = 9 miles
Step-by-step explanation:
Here, we are given ΔABC ∼ ΔEDC, which means both triangles are similar and they tend to have the same dimensions and properties.
To find the length of BC, we are given the proportion:

Where x represents the length BC.
Solving further, let's cross multiply


Solving for x, we have:

Lets divide both sides by 8


Therefore the distance BC is 9 miles
Answer: 40%
Step-by-step explanation:
700 - 500 = 200
200 / 500 = 40%
27x6x60=9,720 *You can use mental math by multiplying 27 by 6 and adding the 2 zeros to the end of the product*
M^2 = 49
M^2 = 7^2
M = -7 and M = 7