Chapter 1, Equations and Inequalities - 1.6 Solve Inequalities - 1.6 Exercises - Problem Solving - Page 47: 59b

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Write inequalities For Amy: $0.65\times84+0.15\times80+0.2w \geq 85$ $66.6+0.2w\geq85$ $w \geq 92$ For Brian: $0.65\times80+0.15\times100+0.2x \geq 85$ $67+0.2x \geq 85$ $x \geq 90$ For Clara: $0.65\times 75+0.15\times95+0.2y \geq 85$ $63+0.2y \geq 85$ $y \geq 110$ For Dan: $0.65\times80+0.15\times90+0.2z \geq 85$ $65.5+0.2z \geq 85$ $z\geq 97.5$