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Linear Equations in One Variable

SAT Math· difficulty 4/5

A school sells 200 fewer hot lunches than cold lunches in a week. Together, lunches total 1000. How many hot lunches?

  • A

    300

  • B

    600

  • C

    400

    check_circle
  • D

    500

Explanation

h=c−200h = c - 200, h+c=1000h + c = 1000. Sub: 2c−200=10002c - 200 = 1000 → c=600c = 600, h=400h = 400.

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