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Linear Inequalities in One or Two Variables

SAT Math· difficulty 4/5

A vending machine accepts only quarters and dollar coins. The total must be at least \5.Inequalityfor. Inequality for qquartersandquarters andd$ dollar coins:

  • A

    0.25q+d≥50.25q + d \ge 5

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  • B

    q+d≥5q + d \ge 5

  • C

    0.25q+d≤50.25q + d \le 5

  • D

    q+0.25d≥5q + 0.25d \ge 5

Explanation

Each quarter is \0.25andeachdollarisand each dollar is$1$.

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