Kathryn014
23.09.2019 •
Mathematics
Four people in a room. each shakes hands with each of the others once. how many handshakes are there?
6
10
12
16
22
Solved
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Ответ:
The clearest way to determine this is by creating a table of possible hand shaking. If we label the people A-D, the following are the ways they can be combined:
AB
AC
AD
BC
BD
CD
There are no other combinations.
Ответ:
3:5 is less tan 7:10
The ratio 14:20 is greater than the ratio 9:15.
The ratios in Table 1 are less than the ratios in Table 2.
Step-by-step explanation:
3:5 as a fraction is 6/10
7:10 as a fraction is 7/10
3:5 is less