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math

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paid before February 12th the social cost $2.00. If you paid at the door the social cost $5.00. Altogether, 110 students attended the social collecting a total of $454. How many students paid before February 12th and how many paid at the door?

  • math - ,

    e = paid early
    d = paid at door

    e + d = 110
    2e + 5d = 454

    3d = 234
    d = 78
    e = 32

    check:
    2*32 + 5*78 = 64 + 390 = 454

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