3 years ago

Add the fractions and give me the answer?

Mathematics

2 answers:

Paha777 [63]3 years ago

8 0

Answer 5-5

Step-by-step explanation:

belka [17]3 years ago

6 0

Answer:

22/20 or 1 1/20

Step-by-step explanation:

1/4 + 4/5

5/20 + 16/20

= 21/20 = 1 1/20

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Can someone answer and explain this to me??? thanks!!!!!!!!!!!

lozanna [386]

9514 1404 393

Answer:

(f◦g)(x) = x

Step-by-step explanation:

The composition (f◦g)(x) means f(g(x)). As with any function evaluation, put the argument where the variable is, and simplify.

$(f\circ g)(x)=f(g(x))=f\left(\dfrac{3x}{x-1}\right)=\dfrac{\left(\dfrac{3x}{x-1}\right)}{\left(\dfrac{3x}{x-1}\right)-3}\\\\=\dfrac{\left(\dfrac{3x}{x-1}\right)}{\left(\dfrac{3x-3(x-1)}{x-1}\right)}=\dfrac{3x}{3x-3x+3}=\dfrac{3x}{3}\\\\\boxed{(f\circ g)(x)=x}$