Пошаговое объяснение:
1) a) NP = y-2;
b) PK = 2,25y
c) MK = y + 2;
P = MN + NP + PK + MK
p = y+y-2+ 2.25y+y+2
2) 19.5 = y+y-2+ 2.25y+y+2
3) 19.5 = y+y-2+ 2.25y+y+2 - сокращаем
y+2,25y = 19.5
3,25y = 19.5
y = 6
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Answers & Comments
Пошаговое объяснение:
1) a) NP = y-2;
b) PK = 2,25y
c) MK = y + 2;
P = MN + NP + PK + MK
p = y+y-2+ 2.25y+y+2
2) 19.5 = y+y-2+ 2.25y+y+2
3) 19.5 = y+y-2+ 2.25y+y+2 - сокращаем
y+2,25y = 19.5
3,25y = 19.5
y = 6