Question 1123204
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(1) Algebraically....<br>
We are asked to find the possible numbers of women on the committee, so use that as our variable; the number of men will be 3 less:<br>
let x = number of women
then x-3 = number of men<br>
The total number of people on the committee -- x, plus (x-3) -- is to be between 7 and 15:<br>
7 <= x+(x-3) <= 15
7 <= 2x-3 <= 15
10 <= 2x <= 18
5 <= x <= 9<br>
The number of women can be between 5 and 9.<br>
Using logical reasoning....<br>
Not counting the 3 "extra" women, the committee consists of equal numbers of men and women, and the total number on the committee is between 4 and 12; that means the numbers of men and women are between 4/2=2 and 12/2=6 each.  And then counting the other 3 women, the number of women is between 2+3=5 and 6+3=9.