Các câu hỏi tương tự
hai kho hang chua 450 tan hang neu chuyen 50 tan tu kho thu nhat sang kho thu 2 thi so hang o kho thu nhat bang 5/4 so hang o kho thu hai tinh so hang o moi kho luc dau
co hai thung dau, luc dau so lit dau thung thu nhat gap ba lan thung thu hai, neu chuyen 15 lit tu thung thu nhat sang thung thu hai thi so lit dau trong thung thu hai bang 5/9 thung thu nhat. hoi luc dau moi thung co may lit
bai 1
a = (3x / 2x + 4 ) + (x +3 /x ^ 2 - 4 )
a . tim x de gia tri phan thuc a duoc xac dinh
b. rut gon a
c. tinh gia trin cua a khi x bang -3
d . tim gia tri cua x de phan thuc co gia tri bang 2
Giai toan bang cach lap phuong trinh :
So lua o kho thu nhat gap doi so lua o kho thu hai . Neu bot o kho thu nhat di 750 ta va them vao thu hai 350 ta thi so lua o 2 kho se bang nhau . Tinh xem luc dau moi kho co bao nhieu lua.
tu cua mot phan so nho hon mau cua no la 50 don vi. neu them vao tu 17 don vi , vao mau 2 don vi thi duoc phan so moi bang nghich dao cua phan so ban dau. tim phan so ban dau
Mau so cua 1 phan so lon hon tu so cua no la 3 don vi . Neu tang ca tu va mau them 2 don vi thi duoc phan so moi bang 1 phan 2 . Tim phan so ban dau
mot so tu nhien co 2 chu so voi tong cac chu so bang 14. neu viet nguoc lai thi duoc 1 so tu nhien co 2 chu so ,lon hon so ban dau 18 don vi . tim so tu nhien ban dau
mot so tu nhien co 2 chu so voi tong cac chu so bang 14. neu viet nguoc lai thi duoc 1 so tu nhien co 2 chu so ,lon hon so ban dau 18 don vi . tim so tu nhien ban dau
giai cu the
tim 3 so tu nhien lien tiep,biet tich cua 2 so sau lon hon tich cua 2 so dau la 25
tim 3 so tu nhien chan lien tiep,bieu neu ta lay binh phuongcua so o giua tru di tichcua so lon nhat va so be nhat thi ket qua thu dc dung bang 1/3n cua so be nhat