april861
26.07.2019 •
Mathematics
Christian sold tickets to game. good seats were $5 each poor seats cost $2 each. 210 people attended and paid $660. write a system of linear equations that can be used to find how many good seats and how many poor seats were sold. how many of each type of seat were sold?
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Ответ:
-2(g+p=210)
5g+2p=660
-2g-2p=-420
3g/3=240/3
g=80
g+p=210
80+p=210
-80. -80
P=130
Ответ: