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math

posted by on .

if attendance at a certain high school had incresed by 30 percent over lasy year, this years attendance would have been 1430. In reality, attendance fell by 35 percent from last year. what was this years attendance?

im not sure where to begin...
am i on the right track if i do...

x + 30/100 = 1430

x - 35/100

  • math - ,

    to get last year's attendance ...
    1.3x = 1430
    x = 1430/1.3 = 1100

    reality ...
    this year's was only 65% of last years, (it dropped 35%)

    so this year's attendance
    = .65(1100) = 715

  • math - ,

    1.3x=1430

    x=1430/1.3=1100 so the attendance from last year

    since it fell by 35% last year only 65% is left so
    0.65(1100)= 715
    so this years attendance was 715 students

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