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Singleforever1
a fost răspuns

Stiind ca 2b/5 = 4/3b, aflati valiarea expresiei 6ab-8

Răspuns :

Laian
2a/5=4/3b=>6ab=2= >20-8=12
Abc112
[tex] \frac{2a}{5} = \frac{4}{3b} [/tex]

[tex]2a \times 3b = 4 \times 5[/tex]

[tex]6ab = 20[/tex]

[tex]ab = \frac{20}{6} [/tex]

[tex]ab = \frac{10}{3} [/tex]

[tex]6ab - 8 = 6 \times \frac{20}{6} - 8 = 20 - 8 = 12[/tex]

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