Answer:
Required equation:
Length of the main span of the Dames point Bridge = 396 meters
Step-by-step explanation:
Main span of the Sunshine Skyway Bridge = 366 meters .... (1)
Let represent the length of the main span of the Dames point Bridge.
It is given that the bridge's main span is 30 meters shorter than the main span of the Dames Point Bridge.
Main span of the Sunshine Skyway Bridge = meters .... (2)
From (1) and (2) we get
Add 30 on both sides.
Hence, the required equation is and the length of the main span of the Dames point Bridge is 396 meters.