Question

taie o bucata de sarma cu lungimea de 10cm in trei parti direct propotionale cu 6;5;9.Lungimile sunt...​

Answer 1

a+b+c=10

a/6=b/5=c/9=k

a=6k

b=5k

c=9k

6k+5k+9k=10

20k=10

k=1/2

a=6/2=3

b=5/2=2.5

c-9/2=4.5

Succes!