math

At the beginning of the year, 40% of the students in the Art Club were boys. In the middle of the year, 25% of the girls left but 8 more boys joined the Art Club. The number of members became 42. Find the total number of Art Club members at the beginning of the year.

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  1. 42=.4AC+8 +.6AC(1-.25)
    find AC, the total number of art club at start of year.

    42-8=AC(.4+.75*.6)
    34=AC(.85) >>>>>AC=40 check that.

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    bobpursley
  2. Thanks!

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