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13 Calculați a/c stiind că a/b=9/5 si b/c=18/25

Răspuns :

Răspuns:

a/b=9/5

b/c=18/25

a/b×b/c=9/5×18/25

a/c=162/125

Răspuns:

a/b=9/5=k⇒a=9k, b=5k

b/c=18/25=t⇒b=18t, c=25t

Daca b=5k si b=18t ⇒5k=18t⇒k=18t/5

a=9k⇒a=9*18t/5⇒a=162t/5

a/c=162t/5 / 25t=162/125