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saveliy_v [14]
2 years ago
6

Pls help fast maths ​

Mathematics
1 answer:
-Dominant- [34]2 years ago
6 0

Answer:

the answer of question number 4 is : (x+4)

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Perform the indicated operation.(4r/r+3) - (5/r)
Aleks [24]

Answer:

4r² - 5r - 15 / r(r+3)

Step-by-step explanation:

To solve this problem, we will proceed the following way, writing down the common multiple of the denominators.

\frac{4r}{r+3} -\frac{5}{r} =\frac{4r(r)-5(r+3)}{r(r+3)} =\frac{4r^{2}-5r-15 }{r(r+3)}

Thus, the answer is 4r² - 5r - 15 / r(r+3)

7 0
4 years ago
I need help what is 1/3x-3?​
lilavasa [31]

Answer:

\frac{1}{3}x-3=\frac{x}{3}-3

Step-by-step explanation:

\frac{1}{3}x-3\\\\\frac{1}{3}x = \frac{x}{3}  \\\\Find\:L.C.M.\\\\=\frac{x}{3}-3

8 0
3 years ago
Which is the approximate solution for the system of equations x + 5= 10 and 3x + y = 1?
zheka24 [161]

Answer: The approximate solution is (-0.36, 2.08).

Given system of equations : x+5y=10 and 3x+y=1

3 0
2 years ago
Read 2 more answers
Hello need help please with Divide rational and simplify
aliina [53]
Dividing fractions is the same as multiplying by its reciprocal so you can change the equation to this
\frac{ - 14 + 7x}{4}  \times  \frac{4}{4 - 2x}
And you can simplify by eliminating the fours and multiplying straight across
\frac{ - 14 + 7x}{4 - 2x}
You can pull out - 7 from the top and 2 from the bottom so you have this
\frac{ - 7(2  -  x)}{2(2 - x)}
And then you can cancel out to (2-x) to get an answer of
\frac{ - 7}{2}
5 0
3 years ago
HELP I NEED HELP ASAP
Leviafan [203]

Answer:

A

Step-by-step explanation:

Photomath, lol

7 0
3 years ago
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