Question

Tìm một số biết rằng nếu lấy số đó nhân với 4 rồi trừ đi 45 thì có kết quả bằng khi lấy số đó chia cho 4 rồi cộng với 45.

nho giai ro rang va chi tiet  cho minh nhe.Cam on.

Answer 1

Gọi số cần tìm là a. Ta có :

a x 4 - 45 = a : 4 + 45

a x 4 - 90 = a : 4

(a x 4 - 90) x 4 = a

a x 16 - 360     = a

a x 15             = 360

a                    = 360 : 15

a                    = 24

Vậy số cần tìm là 24

Answer 2

số đó là 24 nhé

Answer 3

24

k cho minh nha

Answer 4

24 nhe

Answer 5

gọi số cần tìm là a ,ta có:

ax4-45=a:4+45

ax4-90=a:4

(ax4-90)x4=a

ax16-360=a

ax15=360

a=360:15

a=24

Answer 6

chép sai đầu bài rồi bạn ơi

Answer 7

24 do ban

Answer 8

Chắc chắn không mấy bạn

Answer 9

24 nha

Answer 10

là sao tớ chẳng hiểu giải chị tiết cho mình nha

Answer 11

24 dung 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 12

24000000000000000000000000000

Answer 13

Đúng rồi 24 đó nha bạn

Answer 14

24 đúng đó ko tớ chết luôn , k mình nha

Answer 15

Gọi số cần tìm là a . Ta có:

a×4-45=a÷4+45

a×4-45=a×0,25+45

     a×4= a×0,25+45+45

     a×4=a×0,25+90

a×(0,25+3,75)=a×0,25+90

a×0,25+a×3,75=a×0,25+90

a×3,75=90(Hai tổng bằng nhau cùng bớt đi các số hạng giống nhau)

a=90÷3,75

a=24

Answer 16

24 đó bạn

Answer 17

24 100%

Answer 18

24 dooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo  nha

Answer 19

24 dung 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 20

24 nhé.nhớ tk mình

Answer 21

#ilssang