thày cô mày cho 1 bài toán chỉ dành cho mấy thằng ngu làm
a) 7 x X = 4
X = 4 : 7
X =4/7
b) X x 2 = 1
X = 1 : 2
X =1/2
c) 1 : X = 3
X = 1 : 3
X = 1/3
d) 4 : X = 9
X = 4 : 9
X =4/9
1.Tim X la phan so,biet
a,7 x X bang 4
b,X x 2 bang 1
c,1 chia X
d,4 chia X bang 9
xin mn giup do
1.Chia mot hinh vuong co dien tich 36cm vuong thanh 2 hinh chu nhat bang nhau.Tinh chu vi moi hinh chu nhat sau khi chia ra
2.Tim X la phan so,biet
a,7 x X=4
b,X x 2 = 1
c,1 chia X = 3
d,4 chia X = 9
giup minh voi
Tim so tu nhien x , biet ;
a] Phan so x/35 co gia tri bang 4.
b] phan so 7/x co gia tri bang 1/2
Cho hai so tu nhien la x va y, trong do x co the la 7 , 8 hoac 15. y co the la 63 , 68, 19 . hay tim gia tri lon nhat va be nhat cua phan so xy
Bai toan 1
x+1+x+1+x+1+x+1+x+1+x+1+3nhan x+3=189585.
Bai toan 2
Tim 5 phan so lon hon phan so 4/5 va be hon phan so 5/6.
Bai toan 3
Moi chuyen xe khach cho duoc 40 nguoi (ke ca nguoi lai xe).Hoi co 400 khach thi phai can it nhat bao nhieu xe de cho het so khach do?
Bai toan 4
x+1+x+1+x+1+x+1+x+1+x+1+3 nhan x+3=189585
Bai1
a.cho day so 1;2;3;4;5;..........;X.Tim X biet day so do co tat ca 3089 chu so
b.tim 1 so co 2 chu so ma chu so hang don vi la 4 va khi doi vi tri 2 chu so cho nhau ta duoc so moi hon co cu 18 don vi
c. tim x [X+7]+[X+11]+[X+15]+.......+[X +43]=1980
X+ 5/9=9/5 5/12-X=1/3 1/5+X=7/12 X -7/12 =5/4
2/3*X=4/9 X*3/5=7/10 2/5:X=3/10 X:2/5=3/10
cho so a2008b.Hay tim cac chu so thay cho a va b de duoc so chia het cho ca 2,3,5 va 9
TIM TAT CA SO TU NHIEN X TRONG MOI TRUONG HOP SAU , BIET 456 BE HON X BE HON 465 VA
A, X LA SO CHIA HET CHO 2 VAY X =
tim x biet x la so le chia het cho 3 va 171<x<179
