1/3 и 1/9=3/3 И 1/9
8/21 И 13/15=40/105 И 91/105
1\4 и 5/6=6/24 и 20/24
9/32 и 11/48 =27/96 и 22/96
Периметр: 123, площадь: 246см кв
725-х+346=618
-х=618-346-725
х=-618+1071
х=443
А)0,1,2,3,4,5,6,7,8,9.б)4,5,6,7,8,9,10,11,12,13,14.в)90,91,92,92,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120
Решите уравнение: 2,7+x=6,4 5,01+x=8,04 3,154+x=10,004 3,189+x=5,602 x-25,12=36,15
Borziio [39]
1)2,7+х=6,4
х=6,4-2,7
х=3,7
2)5,01+х=8,04
х=8,04-5,01
х=3
3)3,154+х=10,004
х=10,004-3,154
х=6,85
4)3,189+х=5,602
х=5,602-3,189
х=2,413
5)х-25,12=36,15
х=36,15+25,12
х=61,27