5-----100%
8-------x
x=8*100/5=160%
n>m на 60%
24---100%
30--------x%
x=30*100/24=150%
n>m на 50%
X+15+2×(x+15)=120
3x+45=120
3x=75
x=25
ответ: 25 страниц
Tg(x+2x)=1
tg3x=1
3x=π/4+πn,n∈z
x=π/12+πn/3,nπz
А. ) 8\10 = (8\2) \ (10\2) = 4\5; 4\6 = (4\2) \ (6\2) = 2\3; 10\25 = (10\5) \ (25\5) = 2\5; 14\49 = (14\7) \ (49\7) = 2\7; 9\15 = (9\3) \ (15\3) = 3\5; 12\15 = (12\3) \ (15\3) = 4\5; 14\18 = (14\2) \ (18\2) = 7\9
<span>б. ) 8\12 = (8\4) \ 12\4) = 2\3; 12\16 = (12\4) \ 16\4) = 3\4; 12\18 = (12\6) \ (18\6) = 2\3; 24\40 = (24\2) \ (40\2) = 12\20 = (12\2) \ (20\2) = 6\10 = (6\2) \ (10\2) = 3\5; 18\27 = (18\3) \ (27\3) = 6\9 = (6\3) \ (9\3) = 2\3; 20\70 = (20\10) \ (70\10) = 2\7; 8\36 = (8\4) \ (36\4) = 2\9; 30\75 = (30\5) \ (75\5) = 7\13 </span>
<span>в. ) 4\12 = (4\4) \ 12\4) = 1\3; 5\15 = (5\5) \ (15\5) = 1\3; 4\204 = (4\4) \ (204\4) = 1\51; 8\16 = (8\8) \ (16\8) = 1\2; 10\40 = (10\10) \ (40\10) = 1\4; 5\50 = (5\5) \ (50\5) = 1\10</span>
1) 120:4=30( руб) -1 пирожок ;
2) 30×8=140(руб)-8 пирожков;
Видповидь: потребуеться 140 рублей на 8 пережков!
А ще можно хлебать так!
120+120=240(руб)