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ELEN [110]
3 years ago
14

Triangle def is equilateral. If the perimeter of def is 36, the length of de is 5x-8, then what is the value of x

Mathematics
1 answer:
My name is Ann [436]3 years ago
3 0

Answer:

4

Step-by-step explanation:

All the sides of an equilateral triangle are equal, hence the perimeter is expressed as P = 3s

s is one of the side length

Given  DE = 5x - 8

P = 3DE

P = 3(5x-8)

36 = 3(5x-8)

36/3 = 5x-8

12 = 5x - 8

5x = 12+9

5x = 20

x = 20/4

x = 4

Hence the value of x is 4

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