Question

Va rog frumos!dau coroana

Answer 1

4) x+x/4=375 se aduce la acelasi numitor si va veni 5x/4=375=>x=(375*4)/5=1500/5=300
3)a+b+c=700
b=a/2=>a=2b
c=b/2=>b=2c=a/4
a+a/2+a/4=700 se aduce la acelasi numitor si va veni 7a/4=700=>a=(700*4)/7=>a=400
b=a/2=200
c=b/2=100 

Answer 2

3.a+b+c=700

b=a:2

c=b:2

4c+2c+c=700

7c=700

c=700:7

c=100

b=2x100

b=200

a=200x2

a=400

                                        R:400,200,100

4.a+a:4=375

inlocuim pe a:4 cu ,,s''

a+s=375

4s+s=375

5s=375

s=375:5

s=75

a=75x4

a=300

                                      R:300