3 years ago

I want the answers plz...

Mathematics

1 answer:

Darina [25.2K]3 years ago

5 0

Tip: look up the words and find the definition! its much easier

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Simplify 1/x-3+4/x divided by 4/x-1/x-3

Alchen [17]

The answer is $\frac{5x-12}{3x-12}$

The expression is: $\frac{ \frac{1}{x-3}+ \frac{4}{x} }{ \frac{4}{x} - \frac{1}{x-3} }$

Let's factorize it:
$\frac{ \frac{1}{x-3}+ \frac{4}{x} }{ \frac{4}{x} - \frac{1}{x-3} } = \frac{ \frac{x*1}{x(x-3)}+ \frac{4*(x-3)}{(x-3)*x}}{ \frac{(x-3)*4}{(x-3)*x}- \frac{x*1}{x*(x-3)}}= \frac{ \frac{x+4(x-3)}{x(x-3)} }{ \frac{4(x-3)-x}{x(x-3)} }$

Since $\frac{ \frac{a}{b} }{ \frac{c}{d} }= \frac{a}{b}/ \frac{c}{d}= \frac{a*d}{b*c}$ , then:
$\frac{ \frac{x+4(x-3)}{x(x-3)} }{ \frac{4(x-3)-x}{x(x-3)} }= \frac{(x+4(x-3))*x(x-3)}{(4(x-3)-x)*x(x-3)}$

Cancel x(x-3) and simplify:
$\frac{(x+4(x-3))*x(x-3)}{(4(x-3)-x)*x(x-3)} = \frac{x+4(x-3)}{4(x-3)-x} = \frac{x+4x-12}{4x-12 -x} = \frac{5x-12}{3x-12}$

4 0

3 years ago

I am actually in 4th grade but anyway I need see

FromTheMoon [43]

Sasha grew the most

6 0

3 years ago

Giving brainliest !!!!!!!

VARVARA [1.3K]

Answer:

6 square inches

Step-by-step explanation: