Simultaneous Equation Solver Application; Getting Started With The Simultaneous Equation Solver Application - Texas Instruments TI-83 Plus Manual Book

Simultaneous Equation Solver Application

Getting Started with the Simultaneous Equation Solver
Application
Work through the following example to get acquainted with the
main features of the Simultaneous Equation Solver application.
A small corporation borrowed $500,000 to expand its product
line. Some of the money was borrowed at 9% interest, some at
10%, and some at 12%. How much was borrowed at each rate
if the annual interest was $52,000 and the amount borrowed at
10% was 2.5 times the amount borrowed at 9%?
Let x = amount of money borrowed at 9%
y = amount of money borrowed at 10%
z = amount of money borrowed at 12%
1. Write an equation for each of the statements.
x + y + z = 500,000
.09x + .1y + .12z = 52,000
y = 2.5x
2. Press
3. Select
TI-83 Plus Polynomial Root Finder / Simultaneous Equation Solver Application
2.5x – y = 0
to display a list of applications on your calculator.
. The information screen is displayed.
PolySmlt
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