Question

exercițiul 7 va rog repede dau coroana

Answer 1

a) => x=0,6y
a=(0,6y +y)/(1,8y+y) = 1,6y/2,8y = 4/7= 0,(571428)

b) => x= 0,6y
b=(0,6y+y)/(4,2y-y) = 1,6y/3,2y = 1/2= 0,5

c) => x=0,6y
c= (y-0,6y)/(0,6y+4,2y) = 0,4y/4,8y = 1/12= 0,08(3)