Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 3 - Section 3.1 - Systems of Two Equations in Two Unknowns - Exercises - Page 185: 19

Answer

The solution of the system of equations is approximately the ordered pairs x,y: $(116.6,-69.8)$

Work Step by Step

By looking at graph, the solution of the system of equations is approximately the ordered pairs x,y: $(116.6,-69.8)$. If we want to check the solution we can substitute this point into the equations: 1) $10.2x+14y=213$ 1) $10.2(116.6)+14(-69.8)=1189.3-977.2=212.1\approx213$ 2) $4.5x+1.1y=448$ 2) $4.5(116.6)+1.1(-69.8)=524.7-76.8=447.9\approx448$ The solution of the system of equations is approximately the ordered pairs x,y: $(116.6,-69.8)$
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