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2022-10-11 22:45:51
d
2022-10-11 22:38:06
c
2022-10-11 22:37:39
d
2022-10-11 22:36:28
bạn an có số viên bi là
10-5=5 viên
ĐÁP SỐ:5 viên bi
2022-10-11 22:32:46
2:x=32
x=32:2
x=16
2022-10-11 22:30:50
( 10/2018+2017/100 : 1 1/2)x(1 1/6 - 1/2-2/3)
=(10/2018 + 2017/100 : 1 1/2) x 0=0
2022-10-11 22:27:08
( 10/2018+2007/100:1 1/2)x(1 1/6 - 1/2- 2/3)
=( 10/2018+2017:1 1/2)x0=0
2022-10-11 22:21:54
chiều rộng thửa ruộng là:60 x 3/4=45m
s thửa ruộng là: 60x 45=2700m2
cả thửa ruộng đó thu được số kg thóc là:2700:100x50=1350kg
DS:1350 kg thóc
2022-10-11 22:16:41
nửa chu vi khu rừng là: 30:2=15(km)
ta có sơ đồ:
chiều dài:5 phần tổng 15km
chiều rộng:3 phần
theo sơ đồ tổng số phần bằng nhau là 5+3=8 phần
chiều rộng khu rừng là 15:8x3=45/8km
chiều dài khu rừng là:15-45/8=7/8 km
s khu rừng là:45/8x75/8=3375/64km2
đổi 3375/64km2=5273ha
đs: 5273ha
2022-10-11 21:59:08