Question

se considera frectia 15 supra n+2 unde n este numr natural
a)determinati numerele natirale n,astfel incat fractia sa fie supraunitara.
b)Determinati numarul natural n,astfel fractia sa fie egala cu 15%
varoggg

Answer 1

Răspuns:

$a. 15 > n+2\\\\15-2 > n\\\\n < 13\\\\n=12,11,10,...1,0\\\\b.\frac{15}{100} *\frac{15}{n+2}= \\\\225=100(n+2)\\\\225=100n+200\\\\225-200=100n\\\\n=\frac{25}{100} = > n=\frac{1}{4}$