Question

1. a) stiind ca: a supra 0,2= 0,24 supra b, calculati 1000ab;
b) x supra y= z supra t, calculati 11- xt supra yz.

Answer 1

a) a/0,2=0,24/b ⇒ ab=0,048 ⇒ 1000ab=48;
b) x/y=z/t ⇒ xt=yz ⇒ xt/yz=1 ⇒ 11-xt/yz=10.