Giup với
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Những câu hỏi liên quan
VM
giúp với giúp với giúp e với ạ. e cảm ơn
1
TD
6 tháng 2 2022
a)\(-1,6:\left(1+\dfrac{2}{3}\right)=-1,6:\dfrac{5}{3}=-\dfrac{8}{5}.\dfrac{3}{5}=\dfrac{-24}{25}\)
b)\(\left(\dfrac{-2}{3}\right)+\dfrac{3}{4}-\left(-\dfrac{1}{6}\right)+\left(\dfrac{-2}{5}\right)=-\dfrac{2}{3}+\dfrac{3}{4}+\dfrac{1}{6}-\dfrac{2}{5}=\dfrac{-40+45+10-24}{60}=\dfrac{-9}{60}=\dfrac{-3}{20}\)
c)\(\left(\dfrac{-3}{7}:\dfrac{2}{11}+\dfrac{-4}{7}:\dfrac{2}{11}\right).\dfrac{7}{33}=\left(\dfrac{-3}{7}.\dfrac{11}{2}+\dfrac{-4}{7}.\dfrac{11}{2}\right).\dfrac{7}{33}=\left[\dfrac{11}{2}\left(\dfrac{-3}{7}+\dfrac{-4}{7}\right)\right].\dfrac{7}{33}=\dfrac{-11}{2}.\dfrac{7}{33}=\dfrac{-7}{6}\)
d)\(\dfrac{-5}{8}+\dfrac{4}{9}:\left(\dfrac{-2}{3}\right)-\dfrac{7}{20}.\left(\dfrac{-5}{14}\right)=\dfrac{-5}{8}-\dfrac{4}{9}.\dfrac{3}{2}+\dfrac{1}{8}=\dfrac{-5}{8}+\dfrac{1}{8}-\dfrac{2}{3}=-\dfrac{7}{6}\)
NN
6
NT
Ai giúp mình với ạ
0
C
1
SV
Sinh Viên NEU
CTVVIP
20 tháng 11 2023
1 correct
2 success => only success
3 was released => released
4 correct
5 focused on => on
6 as a => a
7 correct
8 each others => others
9 satisfy with => satisfy
10 correct
11 correct
LN
1
DT
Đỗ Thanh Hải
CTVVIP
27 tháng 11 2021
1 were - would you play
2 weren't studying - would have
3 had taken - wouldn't have got
4 would you go - could
5 will you give - is
6 recycle - won't be
7 had heard - wouldn't have gone
8 would you buy - had
9 don't hurry - will miss
10 had phoned - would have given
11 were - wouldn't eat
12 will go - rains
13 had known - would have sent
14 won't feel - swims
15 hadn't freezed - would have gone
TG
0
Gọi số sản phẩm mà mỗi tổ làm được lần lượt là:
\(x;y;z\left(x;y;z\in N\right)\)
Theo bài ra ta có: \(\dfrac{x}{3}=\dfrac{y}{4}=\dfrac{z}{5}\)
Sau khi tăng năng suất, tổ I làm được: \(x+30\%x=1,3x\)
Tổ II làm được: \(y+20\%y=1,2y\)
Tổ III làm được: \(z+10\%z=1,1z\)
Theo bài ra, ta có: \(1,1z-1,3x=16\) \(\left(1\right)\)
Mà \(\dfrac{x}{3}=\dfrac{z}{5}\Rightarrow z=\dfrac{5}{3}x\)
Thay vào \(\left(1\right)\) ta được: \(1,1.\dfrac{5}{3}x-1,3x=16\Rightarrow x=30\)
Mà \(\dfrac{x}{3}=\dfrac{y}{4}\) \(\Rightarrow\) \(y=40\)
Vậy số sản phẩm mà tổ II làm được nếu tăng năng suất là: \(1,2.40=48\) sản phẩm