Question

16 și 15 e urgent! DAu multe puncte

Answer 1

16a) ab=0.2*0.24=0.048; 1000ab=1000*0.048=48 16b) xt=yz, 2 numere egale impartite dau 1, deci 11-1=10 15a) 2x/3y = 2/3*x/y, deoarece x/y = 2/7 => 2/3*2/7=4/21 15b) (x+y)/y = x/y+y/y = 2/7+1=9/7 15c) 2y=7x; y=3.5x; x/3.5x-x = x/2.5x; x si x se simplifica si raspunsul e 1/2.5 = 10/25 = 2/5 15d) (2x+3y)/5y = 2x/5y+3y/5y=2*2/5*7+3/5= 4/35+3/5 = 4/35+21/35 = 25/35 = 5/7