There is a section of the Atlantic Ocean, known as the Bermuda Triangle, where treasure hunters often search for sunken ships. If a salvage team can search 4 square miles of ocean per day, how long will it take the team to search the red-shaded region in the diagram?

Complete the sentence that explains why Write an Equation is a reasonable strategy for solving this problem. Because the answer may be _________ the numbers in the problem.

Because the answer may be determined by the relationship between the numbers in the problem.