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Deliascumpica98
a fost răspuns

daca a/b =2/7, determinati 2a+b/5a+2b .
urgent dau coronita

Răspuns :

[tex] \frac{a}{b}= \frac{2}{7} =k[/tex]⇒a=2k,b=7k

[tex] \frac{2a+b}{5a+2b} [/tex]=[tex] \frac{4k+7k}{10k+14k} = \frac{11k}{24k} = \frac{11}{24} [/tex]
a=2
b=7
2a+b=4+7=11
5a+2b=10+14=24
2a+b/5a+2b=11/24

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