BANKING The numbers of three types of bank accounts on January 1 at the Central Bank and its branches are repre- sented by matrix A: Fixed- Checking Savings deposit accounts accounts асcounts Main office [2820 1470 1120 A = Westside branch 1030 520 480 Eastside branch [1170 540 460 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 rep- resented by matrix C. Thus, 260 120 110 120 80 80 140 60 50 and C = 70 30 40 120 70 50 60 20 40 a. Find matrix D, which represents the number of 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 accounts at each loca- tion during the second quarter. Write a matrix E = 1.1D to reflect this anticipated increase.

BANKING The numbers of three types of bank accounts on January 1 at the Central Bank and its branches are repre- sented by matrix A: Fixed- Checking Savings deposit accounts accounts асcounts Main office [2820 1470 1120 A = Westside branch 1030 520 480 Eastside branch [1170 540 460 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 rep- resented by matrix C. Thus, 260 120 110 120 80 80 140 60 50 and C = 70 30 40 120 70 50 60 20 40 a. Find matrix D, which represents the number of 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 accounts at each loca- tion during the second quarter. Write a matrix E = 1.1D to reflect this anticipated increase.

Algebra for College Students

10th Edition

ISBN:9781285195780

Author:Jerome E. Kaufmann, Karen L. Schwitters

Publisher:Jerome E. Kaufmann, Karen L. Schwitters

Chapter11: Systems Of Equations

Section11.3: Matrix Approa To Solving Linear Systems

Problem 51PS

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