Question

Va rog rapid dau 50 puncte si corona​

Answer 1

10% din 450 inseamna 10/100 * 450

la suta = impartit la 100

din = inmultit cu

ideea e ca iti trb 10 procente din cele 450

10 : 100 * 450 = 1 : 10 *450 = 45

13 : 100 * 2500 = 13 : 1 * 25 = 325

75 : 100 * 24 = 3 : 4 * 24 = 3 : 1 * 6 = 18

45 + 325 - 18 = 352

78:100 * 4800 = 78 * 48 = 3744

22 : 100 * 350 = 22 : 10 * 35 = 11 : 1 * 7 = 77

3744 + 77 = 3821

12 : 100 * 650 = 12 : 10 * 65 = 6 : 5 * 65 = 6 : 1 * 13 = 78

125 : 100 * 28 = 5 : 4 * 28 = 5 * 7 = 35

30 : 100 * 40  = 3 : 1 * 4 = 12

78 + 35 - 12 = 101

Answer 2

a)10/100*450+13/100*2500-75/100*24=45+13*25-18=352

b)78/100*4800+22/100*350=78*48+77=3821

c)12/100*650+125/200*28-30/100*40=78+35-12=101