co 5 cai goi me co 2 cai goi con co 3 cai goi neu me co 8 cai goi thi me co 5 cai goi con co 3 cai goi nua .neu me co 10 cai goi thi me co 5 cai goi con co 5cai goi hoi neu me co 20cai goi thi con co bao nhieu cai goi ,me co bao nhieu cai goi ?
Mot cua hang thuc hien chinh sach giam gia nhu sau , giam 10% / ao ,20%/ quan , 30%/ giay , biet khi mua bao gom 1 ao , 1 quan , 1 giay thi giam them 5% , ban A mua 3 cai ao gia 300000/ cai , 2 cai quan 250000/cai , 1 doi giay 1000000/doi ( gia chua giam ). Hoi ban tra bao nhieu tien ?
AI BIET GIAI NHANH GIUP MINH NHE , MINH DANG CAN GAP LAM ! CAM ON NHIEU
,1 hinh thang co dien tich 2187cm3 , day be kem day lon 7,2 cm va = 4/5 day lon . Tinh chieu cao hinh thang
10 cai k ai muon tra loi cau hoi nha , minh dang can gap
co mot ba gia cam gio di cho .Ba gap 1 cau be an chuoi xong vut vo xuong dat . Ba cu bao : " Vut vo vao thung rac " . Cau be bao : "Ba co vut di thi vut , toi ko vut dau. Hoi cau be mat gi?
A:Cau be mat ve sinh
B:Cau be mat net
C:Cau be cha mat gi
o 2 ban la hai cai cay o giua co treo 1 cai vong co 1 ong cu dang nam o duoi co 1 cai gieng hoi ong cu bi j
cai gi o phia truoc bn ma ko nhin thay dc
tren nhap duoi giat la dang lam gi
trong 1 be ca co 1o con biet co 4 con bi chet, 3 con boi di cho khac hoi trong be ca co may con ca
Cac anh cac chi oi giup em voi, gap lam.Cho ham so y=x+1 co do thi la (d) va ham so y= -x+3 co do thi la (d' )
a) Ve (d) va (d' ) tren cung mot mat phang toa do
b) Hai duong thang (d) va (d' ) cat nhau tai C va cat truc Ox theo thu tu tai A va B tim toa do cac diem A,B,C (Tim toa do diem C bang phuong phap dai so)
c) tinh chu vi va dien tich tam giac ABC (voi don vi do tren cac truc toa do la cm)
d) tinh goc tao boi duong thang y=x+1 voi truc Ox
Cam on nhieu.
cho hinh thang abcd bd=8 bc=15 cd=17 dien tich abcd = 90 . tinh chieu cao cua hinh thang ?? minh can gap giai giup mk nha !!! cam on moi nguoi nhieu
1 ba cu co 25000 dong. hoi ba co the mua duoc bao nhiu qua cam (so tien moi qua tim trong thuc te)