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Angelica16
a fost răspuns

32 de muncitori pot termina o constructie in 50 de zile .! Cati muncitori pot termina o constructie in 40 de zile ....Dar 64 de zile ....?muncitori !!!

Răspuns :

32 m _____50 zile
x m _______40 zile
32/ x = 40/50
x= 32×50 /40
x= 1600/ 40
x= 40 de muncitori

32m ____50 zile
x m ______ 64 zile
32/x = 64/ 50
x = 32 × 50/ 64
x=1600/64
x=25 de muncitori

CORONIȚĂ! ?!?! SUCCES! !!!
32 muncitori.........50 zile
} i.p.
x muncitori............40 zile

[tex]\frac{x}{32}[/tex]= [tex]\frac{50}{40}[/tex]

x= [tex]\frac{32\cdot50}{40}[/tex] (facem simplificarea)

x=8·5=40 de muncitori

40 muncitori............40 zile
}i.p.
x muncitori...............64 zile

[tex]\frac{x}{40}[/tex]= [tex]\frac{40}{64}[/tex]

x= [tex]\frac{40\cdot40}{64}[/tex]=5·5=25 muncitori

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