The numbers of three types of bank accounts on January 1 at the Central Bank and its branches are represented by matrix A. 

   

The number and types of accounts opened during the first quarter are represented by matrix B, and the number and types of accounts closed during the same period are represented by matrix C. Thus, 

   

(a) Find the matrix D, which represents the number each type of account at the end of the first quarter at each location. 

   

(b) Because a new manufacturing plant is opening in the immediate area, it is anticipated that there will be a 10% increase in the number of account at each during the second quarter. Write a matrix E = 1.1 D to reflect this anticipated increase. 

Transcribed Image Text:

Checking accounts Savings accounts Fixed- deposit accounts Main office 2820 1490 1120 A = Westside branch 1050 520 480 Eastside branch 1190 540 480 Checking accounts Savings accounts Fixed- deposit accounts Main office 2820 1490 1120 A = Westside branch 1050 520 480 Eastside branch 1190 540 480

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