Ответ:
Т=5x
S=7x
K=8x
5x+7x+8x=180
20x=180
x=180:20
x=9
T=9×5=45
S=9×7=63
K=9×8=72
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Ответ:
Т=5x
S=7x
K=8x
5x+7x+8x=180
20x=180
x=180:20
x=9
T=9×5=45
S=9×7=63
K=9×8=72