Question

tìm x

x:4+x=3,75

Answer 1

x:4+x=3,75

x*1/4+x=3,75

x*5/4=3,75

x=3

Vậy x=3

Nhớ k cho mình nhé

Answer 2

\(x\div4+x=3,75\)

\(\Leftrightarrow\frac{x}{4}+x=3,75\)

\(\Leftrightarrow x\left(\frac{1}{4}+1\right)=3,75\)

\(\Leftrightarrow x\left(\frac{1}{4}+\frac{4}{4}\right)=3,75\)

\(\Leftrightarrow\frac{5}{4}x=3,75\)

\(\Leftrightarrow x=3,75\div\frac{5}{4}\)

\(\Leftrightarrow x=3,75\times\frac{4}{5}\)

\(\Leftrightarrow x=3\)

Answer 3

\(x\div4+x=3,75\)

\(x\times0,25+x=3,75\)

\(x\times\left(0,25+1\right)=3,75\)

\(x\times1,25=3,75\)

\(x=3,75\div1,25\)

\(x=3\)

~ Thiên Mã ~

Answer 4

\(\frac{x}{4}+x=3,75\)

=> \(\frac{x}{4}+\frac{4x}{4}=\frac{15}{4}\)

=> \(x+4x=15\)

=> 5x=15

=> x=3

Answer 5

\(\frac{x}{4}+x=3.75\)

\(\Rightarrow x\cdot\left(\frac{1}{4}+1\right)=3.75\)

\(\Rightarrow x\cdot\frac{5}{4}=3.75\)

\(\Rightarrow x=3\)

Answer 6

=>0,25x + x = 3,75

=>1,25x       = 3,75

=> x              = 3,75 ÷ 1,25

=> x              =      3

Answer 7

ta có: gọi x là 100%

=>100%/4+100%=3.75

=>25%+100%=3.75

=>125%=3.75

=> 5/4=3.75

=> x=(3.75):5*4

=>x=3

học tốt

Answer 8

=3