Question

ajutor dau coroana!!​

Answer 1

Răspuns:

Explicație pas cu pas:

2x+0.15y

a) x= 2.25:1.5+ 0.4*10 = 1.5+4 =5.5

  y= (0.2)² *10² -1 = 0.04 * 100 -1 =4-1 = 3

2x+0.15y = 2*5.5+0.15*3 =11+0.45 = 11.45

b) x= 3.75*10²-1.5 = 375-1.5 = 373.5

  y= (3.6-1.4) *10 =2.2 *10= 22

2x+0.15y = 2*373.5 + 0.15*22 = 747+3.3 = 750.3