DantesinfernoxD9964
16.07.2019 •
Mathematics
How many points does each boy score on average
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Ответ:
the number of girls is 3b and total number ia 4b.
let p be the avg score by the boys.
then,
(3b x 18 + b x p) /4b = 17
(54+p)/4 = 17
54 + p = 68
p= 14
Ответ:
8, cause its congruent to line ab
Step-by-step explanation: