Question

12. Se consideră proporția x/y=5/13.
a) x+y/y
b) x/y+x
c) y-x/x​

Answer 1

Răspuns:

Explicație pas cu pas:

x/y = 5/13

x/5 = y//13 = k

x = 5k

y = 13k

a)

(5k + 13k)/13k = 18k/13k = 18/13

b)

5k/(13k + 5k) = 5k/18k = 5/18

c)

(13k - 5k)/5k = 8k/5k = 8/5