b) a - b = 578 và a: b = 8 ( 53)
=> a = 8b + 53
=> a = 8b + 53 = b + 578
=> 7b = 578 - 53 = 525
=> b = 525 : 7 = 75
=> a = 75 + 578 = 653
tíc mình nha!
hai so tu nhien co hieu bang 178 tim hai so ay biet rang neu dem so lon chia cho so nho thi duoc thuong la 8 va duoc so su la 17 ?
tong cua hai so bang 3857.chia so lon cho so nho, ta duoc thuong la 3 va du la 992. tim hai so
minh dang can gap, cac ban co gang giup minh nhe!
a) tim so tu nhien co 2 chu so biet rang neu dao vi tri cua 2 chu so cho nhau ta duoc 1 so co 2 chu so nho hon so ban dau la 72 don vi b)tim 2 so, biet hieu 2 so do la 578 va so lon hon chia cho so nho duoc thuong 8 la du 53 BAI NAY DE NE MOI NGUOI
hieu cua hai so bang 8210 chia so lon cho so lon ta duoc thuong la 206 va du 10. tim hai so.
cac ban giup minh nhe
a. mot phep chia co tong cua so bi chia va so chia bang 72 biet rang thuong la 3 va so du la 8 tim so bi chia
b. mot phep chia co thuong la 80 va so du la 48 tim so bi chia va so chia biet so bi chia nho hon 4000
Cho ba so tong la 999. Neu lay so thu nhat chia cho so thu hai thi duoc thuong la 5 va du la 3. Thm ba so ay, biet rang so thu nhat lon hon tong hai so kia la 7.
a) Cho 2 so co hieu la 105. Neu so lon chia so be thu duoc thuong la 7 du 3. Tim 2 so da cho.
b)Cho 2 so hon kem nhau 72. Neu giu nguyen so lon va gap 3 lan so be thi duoc 2 so moi hon kem nhau la 38. Tim hai so da cho
Cho hai so co hieu la 105 neu lay so lon chia so be thi duoc thuong la 7 du 3 tim hai so do
Cho hai so hon kem nhau 72 neu giu nguyen so lon va gap 3 lan so be thi duoc hai so moi hon kem nhau 38.Tìm hai số đã cho
Tim hai so co 3 chu so biet tong cua chung la boi cua 504 va thuong cua so lon chia cho so nho la boi cua 6 .
