DeGeneral770
07.12.2021 •
Mathematics
The residents of a downtown neighborhood
designed a triangular-shaped park as part of a
city beautification program. The park is bound by
streets on all sides. The second angle of the
triangle is 3. more than the first. The third angle
is 3° less than eight times.the first. Find the
measures of the angles.
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Ответ:
This is the application of combinations;
Suppose we have 6 boys and 6 girls participating in the tournament ;
take C to represent the combination:
The total number of games = 12 C 2= 66
only boys versus boys games= 6 C 2=15
only girls versus girls= 6 C 2=15
One girl versus one boy game=66-15-15=36
the fraction of the boys versus boys game=(total number of boys versus boys games)/ (total number of games)
=15/66
=5/22
This methodology can be used to solve similar problems with different number of boys and girls participating in the tournament