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Rebecca2374ee
a fost răspuns

Ex 3 va rog
( l-am repostat, aparent Brainly are o problema)

Ex 3 Va Rog Lam Repostat Aparent Brainly Are O Problema class=

Răspuns :

Dianageorgiana794

Răspuns:

x-x/3=28

3x-x=84

x=84:2

x=42 km lungimea drumului

42km=42000m

sau

3/3-1/3=2/3=28 km

2/3...........28 km

3/3..............x km

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x = 3/3·28 : 2/3 = 28·3 : 2 = 42 km=42000m

a - a : 3 = 28 | × 3

3 × a - a = 84

2 × a = 84

a = 84 : 2

a = 42 km = 42000 m

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