Продали во 2 и 3 день вместе
Т.к.во 2 и 3 день поровну, то
в каждый из 2 и 3
Следовательно в 1 и 2 вместе
Ответ:365
1.
<span>1/2+1/3 = 3/6 + 2/6 = 5/6,
3/7+5/8 = 24/56 + 35/56 = 59/56 = 1 3/56,
1/10-1/13 = 13/130 - 10/130 = 3/130,
1/2-1/11 = 11/22 - 2/22 = 9/22,
2.
3/8+4/16 = 6/16 + 4/16 = 10/16 = 5/8,
</span><span>5/24+7/48 = 10/48 + 7/48 = 17/48,
7/9-4/27 = 21/27 - 4/27 = 17/27,
2/15-1/30 = 4/30 - 1/30 = 3/30 = 1/10,
</span>
3.
<span>7/33-3/77 = 49/231 - 9/231 = 40/231,
6/15+1/56 = 336/840 + 15/840 = 351/840 = 117/280,
4/49-5/63 = 36/441 - 35/441 = 1/441</span>
5 га = 50000 кв. м 50000:8=6250 кв. м Ответ: 6250 кв. м
1) 4х+5х+4,7=16,4
9х+4,7-16,4=0
9х=-11,7
х=-1,3
