The second side of a triangle is 7 inches more than the first side. The third side is 4 inches less than 3 times the first. The perimeter is 28 inches. Find the
Mathematics
rakiahdouglas
Question
The second side of a triangle is 7 inches more than the first side. The third side is 4 inches less than 3 times the first. The perimeter is 28 inches. Find the length of the three sides of the triangle.
1 Answer

1. User Answers kenlingdad
Answer:
First side; 5 in
second side: 12 in
third side: 11 in
Stepbystep explanation:
A: first side B: second side C: third side
b = a + 7
c = 3a 4
a + b + c = 28
a + (a + 7) + (3a 4) =28
5a + 3 = 28
5a = 28 3 = 25
a = 5
b = 12
c = 11