Systems of Two Linear Equations in Two Variables

SAT Math· difficulty 4/5

Plan A: \20/monthand/month and $0.10pertext.PlanB:per text. Plan B:$50$/month with unlimited texts. The plans cost the same at how many texts?

  • A

    200

  • B

    300

    check_circle
  • C

    250

  • D

    400

Explanation

20+0.10t=5020 + 0.10t = 50t=300t = 300.

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