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a:3=b:4=c:5

a*b*c=480

a,b,c=?

Răspuns :

Renatemambouko
a:3=b:4=c:5
a/3=b/4=c/5
b=4a/3
c=5a/3
a*b*c=480
a×4a/3×5a/3=480
20a³/9=480
a³/9=24
a³=9×24=3²×2³×3=(2×3)³=6³
a=6
b=4*6/3=8
c=5*6/3=10

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