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Daniel [21]
3 years ago
8

Describe two reasons for using a variable. Write your response using 4-5 complete sentences.

Mathematics
1 answer:
SVEN [57.7K]3 years ago
6 0
One reason would be if you did not know the answer so you could do
4-5=x
another reason would be if the problem gave you the answer but not one of the things to get the answer
4-x=-1
not sure if that is what you want but I hope this helped
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Firdavs [7]

\frac{3}{2x + 5} + \frac{5}{x-5} = \frac{3(x-5) +5(2x + 5)}{(2x +5)(x-5)} = \frac{3x - 15 + 10x + 25}{(x - 5)(2x + 5)} = \frac{13x + 10}{(x - 5)(2x + 5)}

ANSWER C.) \frac{13x + 10}{(x - 5)(2x +5)}

​\textbf{Spymore}

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3 years ago
Convert 45 miles/h equals how many ft/sec
nlexa [21]
Can you show your original question
8 0
4 years ago
line m contains (6,8) and (-1,2). Line n contains (-1,5) and (5,y). what is the value of y if line m is perpendicular to line n
irakobra [83]

Answer:

djg

Step-by-step explanation:

mdfgndajfghladjfghadjkfghdafjkkkkkkhkljsfjlk;dsajlkdsajlksdaljkdfjlksdajdkljlsdkjlksdljakljkfsdjlsdljksfadjfas;lkdfj;lksjf;ksjfksajdfsakdjf;laskjfkadj;fsfj

3 0
3 years ago
Help please due in. 20 minutes
34kurt

Answer:

B is a solution, A and C are not

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Helena lost her marbles. But then she found them and put them in 44 bags with mm marbles in each bag. She had 33 marbles left ov
Anna007 [38]

Answer:

The total number of marbles is 4m+3

Step-by-step explanation:

There is a typo error in the question.

Helena lost her marbles. But then she found them and put them in 4 bags with m marbles in each bag.

So, total marbles are = 4m

She had 3 marbles left over that didn't fit in the bags.

So, the total number of marbles is 4m+3

5 0
3 years ago
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