Anliz0179
27.06.2019 •
Mathematics
What is the probability a day in the 70s is a monday? which set forms the intersection of tuesdays in the 80s? what is the probability an observation picked at random is both a sunday and more than 90 degrees?
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Ответ:
61 guests
Step-by-step explanation:
9 cakes were cut in 9 pieces, 9 x 9 = 81. There are 81 pieces in total and 20 were left over, 81 - 20 = 61. This means that there were 61 guests if each person ate one piece of cake.