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March 3, 2015

March 3, 2015

Posted by **keisha** on Monday, May 19, 2008 at 9:35am.

1.Write an expression in x for the number of candidates in the universal set

2.Calculate the value of x

- maths (sets) -
**Reiny**, Monday, May 19, 2008 at 11:16amUse Venn diagrams

Draw two intersecting circles, label one French, the other Spanish

Place x in the overlap, 11-x in the non-overlapping part of the French circle and 9-x in the non-overlapping part of the Spanish circle. Put 18 outside the two circles.

11-x + x + 9-x + 18 = 32

solve for x=6

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