radix

Siehe Antwort  eine Frage höher !

Guten Morgen elisabeth,

schau dich mal im Internet um:

70 €   =>  100 %

  5 €  =>     p  %         =>   p =5*100/70

$${\frac{{\mathtt{5}}{\mathtt{\,\times\,}}{\mathtt{100}}}{{\mathtt{70}}}} = {\frac{{\mathtt{50}}}{{\mathtt{7}}}} = {\mathtt{7.142\: \!857\: \!142\: \!857\: \!142\: \!9}}$$

Dein Freund hat dir 7.14 % weggenommen.

Gruß radix !

10 - (2a+2b) : 2 = 10 - ( 2a/2 +2b/2 ) = 10 - (a + b ) = 10-a-b

oder so ;

$${\mathtt{10}}{\mathtt{\,-\,}}{\frac{\left({\mathtt{a}}{\mathtt{\,\small\textbf+\,}}{\mathtt{b}}\right){\mathtt{\,\times\,}}{\mathtt{2}}}{{\mathtt{2}}}} = {\mathtt{10}}{\mathtt{\,-\,}}\left({\mathtt{a}}{\mathtt{\,\small\textbf+\,}}{\mathtt{b}}\right) = {\mathtt{10}}{\mathtt{\,-\,}}{\mathtt{a}}{\mathtt{\,-\,}}{\mathtt{b}}$$

Gruß radix !

Gruß radix !

Hallo Anonymous,

ich hoffe, dass hier deine Frage beantwortet wird:

Oder so:

Gruß radix !

Guten Morgen Anonymous und guten Morgen  asinus,

hier noch weitere Möglichkeiten der Berechnung:

1.)  $${\mathtt{10\,172.03}}{\mathtt{\,-\,}}{\mathtt{2}}\% = {\mathtt{9\,968.589\: \!4}}$$

2.)  100% - 2% = 98% = 98/100 = 0,98

       $${\mathtt{10\,172.03}}{\mathtt{\,\times\,}}{\mathtt{0.98}} = {\mathtt{9\,968.589\: \!4}}$$

Gruß radix !

10 + 5 +  3 * 2  = 15 + 6 = 21

$${\mathtt{10}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}{\mathtt{\,\small\textbf+\,}}{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{2}} = {\mathtt{21}}$$

6/12 von 30 = 1/2 von 30 = 1/2 * 30 = 30/2 = 15

$${\frac{{\mathtt{6}}}{{\mathtt{12}}}}{\mathtt{\,\times\,}}{\mathtt{30}} = {\mathtt{15}}$$

Gruß radix !