Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
(36 + 52) x 46 + (36 + 52) x 53 + 88
= 88 x 46 + 88 x 141
= 4048 + 12408
= 16456
32.62+32.37+32
=32.62+32.37+32.1
=32.(62+37+1)
=3200
tick mk nha
hok tốt
@Lâm
a/=17,58x(43+57)
=17,58x100
=1758
b/=43,57x2,6x(630-630)
=43,57x2,6x0
=0
\(17,58\times43+57\times17,58\)
\(=17,58\times\left(43+57\right)\)
\(=17,58\times100=1758\)
\(43,57\times2,6\times\left(630-315\times2\right)\)
\(=43,57\times2,6\times0\)
\(=0\)
70- 5. ( x - 3)= 45
5 ( x -3 ) = 70 - 45
5 ( x -3 ) = 25
x -3 = 25 : 5
x -3 = 5
x = 5 + 3
x = 8
\(\dfrac{1}{2022}\) \(\times\) \(\dfrac{2}{5}\) + \(\dfrac{1}{2022}\) \(\times\) \(\dfrac{7}{5}\) - \(\dfrac{1}{2022}\) \(\times\) \(\dfrac{8}{10}\)
= \(\dfrac{1}{2022}\) \(\times\) ( \(\dfrac{2}{5}\) + \(\dfrac{7}{5}\) - \(\dfrac{8}{10}\))
= \(\dfrac{1}{2022}\) \(\times\) ( \(\dfrac{9}{5}\) - \(\dfrac{4}{5}\))
= \(\dfrac{1}{2022}\) \(\times\) \(\dfrac{5}{5}\)
= \(\dfrac{1}{2022}\times1\)
= \(\dfrac{1}{2022}\)
(x+1)+(x+3)+(x+5)+...+(x+59)=1710
=>(x+x+x+...+x)+(1+3+5+...+59)=1710
(30 số x)
=>30 x x+900=1710
=>30 x x = 810
=>x= 27
Vậy x =27
\(\left(x+1\right)+\left(x+3\right)+\left(x+5\right)+...+\left(x+59\right)=1710\)
\(\Rightarrow\left(x+x+x+...+x\right)+\left(1+3+5+...+59\right)=1710\)
\(\Rightarrow x\times30+\left[\left(59+1\right)\times30:2\right]=1710\)
\(\Rightarrow x\times30+900=1710\)
\(\Rightarrow x\times30=810\)
\(\Rightarrow x=27\).
