RealSavage4Life
01.12.2020 •
Mathematics
Can someone help me with the equation(s)
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Ответ:
She purchased 8 sports drinks
{d=p+3
2.25p+1.25d=21.25
d=p+3
p=d - 3
2.25(d - 3) + 1.25d = 21.25
2.25(d-3) + 1.25d=21.25
2.25 - 6.75 + 1.25d = 21.25
3.5d = 21.25+6.75
d=28/3.5
D=8
Ответ: