Chapter 2 - Equations, Inequalities, and Problem Solving - 2.7 Solving Applications with Inequalities - 2.7 Exercise Set - Page 140: 23

$1100\leq x\leq 1600$ hours of sunshine per year

Let the hours of sunshine per year be $x$. Ireland gets between 1100 and 1600 hours of sunshine per year can be translated as: $x$ is less than 1600 and greater than 1100. $1100\leq x\leq 1600$ hours of sunshine per year