jessica2138
13.07.2019 •
Mathematics
Can someone me solve number 20.) show work as well .
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Ответ:
There are 5 topics but she has to use 2 different ones. Therefore she has to choose one of the topics out of 20 different mix options.
1/5 x 1/4 = 1/20
(the first topic out of the five) x (the second topic out of four because there is only four topics after choosing the first already)=answer
Ответ:
57.9.c can be written as 57c . 9