Answer:
199 steel rods
Step-by-step explanation:
From that attached diagram, we are told that a truss is made by attaching 1 foot long steel rods together.
In order to make an additional length for the Truss, we use this algebraic expression formula:
Number of steel rods = 4x - 1
Where x = Number of feet
Where x = 1 feet
4(1) - 1 = 4 - 1 = 3 steel rods
From the above question, we are asked to determine number of steel rods in a 50 feet long truss.
Applying the Formula
4x - 1 = Number of steel rods
4(50) - 1
200 - 1 = 199 steel rods.
Therefore, 199 steel rods are in a truss 50 feet long overall
