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Determine the Real Solutions to the System of Nonlinear Equations $x y = 20$

Question 49

Multiple Choice

Determine the real solutions to the system of nonlinear equations.
- $x y = 20$ $x + y = 9$

A) $( 5,4 ) , ( 4,5 )$
B) $( 6,3 ) , ( 3,6 )$
C) $( 20,1 ) , ( 1,20 )$
D) $( 10,2 ) , ( 2,10 )$

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