Răspuns:
Explicație pas cu pas:
a= timbre Andrei
v= timbre Vlad
a+v=100
40a/100=12+30v/100
-
4a/10=¹⁰⁾12+3v/10
4a=120+3v
a+v=100 l *3
4a-3v =120
3a+3v=300
4a-3v= 120
7a= 300+120
7a= 420
v= 420:7
v= 60 timbre (Vlad )
a= 100-60=40 timbre (Andrei )
b)
60:40=1,5 ori mai multe Vlad decat Andrei
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Răspuns:
Explicație pas cu pas:
a= timbre Andrei
v= timbre Vlad
a+v=100
40a/100=12+30v/100
-
a+v=100
4a/10=¹⁰⁾12+3v/10
a+v=100
4a=120+3v
-
a+v=100 l *3
4a-3v =120
-
3a+3v=300
4a-3v= 120
-
7a= 300+120
7a= 420
v= 420:7
v= 60 timbre (Vlad )
a= 100-60=40 timbre (Andrei )
b)
60:40=1,5 ori mai multe Vlad decat Andrei
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