Question

Vă rog mult macar 4 ex ​

Answer 1

Succes...sper ca este bine...

Answer 2

Răspuns:

35) a+a+2+a+4+a+6+15=179

4a=179-15-12

a=152:4=>a=38

nr sunt :38,40,42,44

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39) a+b=72

a=2b

2b+b=72=>b=72:3=>b=24

a=2·24=>b=48

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40) d+m=468

d=3m

3m+m=468

m=468:4=>m=117 caiete matem.

d=3·117=>d=351 caiete dictando

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41) a-b=705

a:b=6=>a=6b

6b-b=705=>b=705:5=>b=141

a=6·141=>a=846

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43) t+f=40

t=4f

4f+f=40=>f=40:5=>f=8 ani are fiul

t=4·8=>t=32 ani are tatal

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44) m+f=36

f=m/5=>m=5f

5f+f=36=>f=36:6=>f=6 ani are fiica

m=5·6=>n=30ani are mama

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45) a+b=24

a=5b

5b+b=24

b=24:6=>b=4

a=5·4=>a=20