madleneinejessup
15.12.2020 •
Mathematics
Find the fourth proportional to r,s and t
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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.