Question

Stiind ca x/ y = 0,6, determinati rapoartele:
a) x+y/3x+y
b) x+y/7x-y
c) y-x/x+7y
Rapid, dau coroana

Answer 1

x/y=0,6

x=0,6y

a)(0,6y+y)/(1,8y+y)=1,6y/2,8y=1,6/2,8=16/28=4/7

b) 1,6y/(4,2y-y)=1,6/3,2=16/32=1/2

c) (y-0,6y)/(0,6y+7y)=0,4/7,6=4/76=2/38=1/19