P21 in matrix P represents the cost of a single subway ride, specifically $1.50. It efficiently provides targeted information within the matrix, simplifying the retrieval of subway fare details.
Certainly! In the matrix P, each element represents transportation costs. P21 specifically refers to the second row and first column, denoting subway fares.
For example, if P21 is $1.50, it indicates the cost of a single subway ride. This matrix serves as a compact representation of transportation expenses, with each element providing specific pricing details. The convenience of using P21 lies in its efficiency—it offers a direct and rapid way to access information about subway fares without the need to search through the entire matrix.
It exemplifies the power of matrices in organizing and presenting data concisely, making it a valuable tool for various applications, including cost analysis and decision-making in transportation and other fields.