47 DOUGHNUTS Mi Ling is ordering doughnuts for a class party The box contains 2 dozen doughnuts some of which are plain and some

Question

47 DOUGHNUTS Mi Ling is ordering doughnuts for a class party The box contains 2 dozen doughnuts some of which are plain and some of which are jelly filled The plain doughnuts each cost 0 50 and the jelly filled cost 0 60 If the total cost is 12 60 use Cramer s Rule to find how many jelly filled doughnuts Mi Ling ordered

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