Math?

4 Antworten

3 Mädchen mit Rock machen 15% der Gäste aus.

Dreisatz: 3/15%=20 Es gibt also 20 Gäste insgesamt

Außerdem sind 3 mit Rock 20% der Mädchen

Dreisatz: 3/20%=15 Es gibt also 15 Mädchen auf der Party

20-15=5 Es gibt 5 Jungen

Anonym1562 
Fragesteller
 09.05.2021, 17:56

Danke :)

0

Von wieviel sind 20% 3 ?

Von wieviel sind 15% 3?

Dann subtrahieren.

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3 = 0,2 M

3 = 0,15 G

------------------------

=>

M = ....

G = ....

---------------------

J = G - M = ....

(J = Anzahl der Jungen = 5)

Anonym1562 
Fragesteller
 09.05.2021, 17:55

Danke :)

0