giá tiền 2 gói bánh là:

        4000x2=8000(đồng)

   giá tiền 4 gói kẹo là:

         2000x4=8000(đồng)

    bạn Hùng phải trả số tiền là:

          8000+8000=16000(đồng)

                           Đáp số:16000 đồng

các bạn nhớ k và kb với mk nha

Ta có 1 gói bánh là 4000 đồng và 1 gói kẹo là 2000 đồng

Ta có: 2x4000+4x2000= 8000x2=16000(đồng)

ĐS: 16000 đồng

cho mik nha

Mua 2 bút xanh và 1 bút đỏ hết số tiền là:

  (2000*2)+5000=9000

    Đáp số:9000

5 cây

Lan có thể mua số cây bút chì là:

10000:2000=5(cây)

Đ/S:..

Giải:

a; Giá một ki-lô-gam thịt là:

30 000 : 2 = 15 000(đồng)

1kg = 10 lạng

Mỗi lạng thịt có giá tiền là:

15 000 : 10 = 1500 (đồng)

b; lớp 3 chưa học số thập phân, em nhé

3,5 lạng = 3 lạng rưỡi.

a: 2kg=20 lạng thịt

Giá tiền của 1 lạng thịt là 30000:20=1500(đồng)

b: 5kg=50 lạng thịt

Giá của 1 lạng thịt là:

205000:50=4100(đồng)

Giá tiền của 3,5 lạng thịt là:

4100x3,5=14350(đồng)

50

chiil

ma toan lop 3 da hoc so mu dau

cau tra loi vua nay bi sai len minh can xem lai

neu dung thi bao nha

abcd=1522756

Số số hạng của dãy số là:

10-0+1=11(số)

Tổng của dãy số là: \(\left(10+0\right)\times\frac{11}{2}=10\times\frac{11}{2}=5\times11=55\)

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800 cái chân,tick đi

400 con chim có số chân là:

400 x 2 = 800 (cái)

Đáp số: 800 cái chân

Số học sinh nam tham gia trong đại hội thể thao là:

\(66\cdot\frac{1}{3}=22\left(hs\right)\)

Số học sinh nữ tham gia trong đại hội thể thao là:

\(66\cdot\frac{1}{2}=33\left(hs\right)\)

Đáp số:...

~Học tốt~

có số học sinh nam tham gia là

       66 *1 :3 =22 (học sinh)

có số học sinh nữ tham gia là

   66 *1 :2 =33 (học sinh)

                 Đáp số 22 học sinh nam

                              33 học sinh nữ

3 x 6 = 18 (người)

18 người