gypsybrio1512
21.01.2021 •
Mathematics
A group of students went on a field trip. There were 3 boys for every 4 girls in the group if there are 20 girls how many students in all went on the field trip
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Ответ:
Ответ:
a^2 + 8^2 = 10^2
a^2 + 64 = 100
a^2 = 36
a = 6