Question

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

Checking
accounts    

 Savings
accounts    

  Fixed-
deposit
accounts

Main office

	2840	1490	1120
	1050	540	460
	1170	560	480

A =

Westside branch

Eastside branch

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,

B =

	260	120	110
	140	60	50
	120	70	50

    and    C =

	120	80	80
	70	30	40
	60	20	40

.

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

E.) (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 location during the second quarter. Write a

matrix E = 1.1D to reflect this anticipated increase.

E=[    ]?

Answer 1