Posted by Kailey on Sunday, May 6, 2012 at 11:53pm.
An exam consists of two parts, Section X and Section Y. There can be a maximum of 80 questions. There must be at least 20 more questions in Section Y than in Section X. Write a system of inequalities to model the number of questions in each of the two sections. Then solve the system by graphing.

Algebra 1  Notsure, Monday, May 7, 2012 at 1:18am
y=x+20
x+y=80
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