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dimulka [17.4K]
3 years ago
7

Simplify 4x+5/6x2-x-12 - 5x/6x2-x-12

Mathematics
2 answers:
MAXImum [283]3 years ago
6 0

Answer:

(5-x)/(3x+4)(2x - 3)

Step-by-step explanation:

Given that:

(4x +5/6x^2 -x-12) - (5x/6x^2-x-12)

As denominator is same so by subtracting the numerators we get:

4x+5 -5x/6x^2-x-12\\5-x/6x^2-x-12

By making factors of the denominator we get:

5-x/6x^2 +8x -9x -12\\5-x/2x(3x +4) -3(3x+4)\\5-x/(3x+4)(2x - 3)

Hence it is the simplified form of given question..

I hope it will help you!

8090 [49]3 years ago
3 0

Simplify 4x+5/6x2-x-12 - 5x/6x2-x-12

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Help me with this pls
eimsori [14]

Answer:

55

Step-by-step explanation:

2x+5 x-5 combine these to get 3x

then you would divide 180 by 3

so u would get 60 = x

60-5 =55

4 0
2 years ago
Read 2 more answers
Can somebody help me? and explain how to do this?
disa [49]

Answer:

The correct answer is last option

2n + m√n - nm

Step-by-step explanation:

It is given an expression,

4√n² + √m²n -  √4n² - √mn²

<u>To simplify the expression</u>

4√n² + √m²n -  √4n² - √mn² = 4n + m√n -2n -nm

= 4n - 2n + m√n - n√m

= 2n +  m√n - n√m

Therefore the correct answer is last option

8 0
3 years ago
The average of m, n, and -1 is 0. What is the value of m+n?
Oxana [17]

Answer: 1

==========================

Explanation:

To average a bunch of numbers, we add them up and divide by how many numbers there are. In this case, we'll divide by 3 since there are 3 numbers.

Add up the values: m+n+(-1) = m+n-1

Divide by 3: (m+n-1)/3

Set this equal to 0 since we're told the average is 0: (m+n-1)/3 = 0

Now let's isolate m+n. It might help to replace "m+n" with another variable, say P to get (P-1)/3 = 0.

Solve for P

(P-1)/3 = 0

P-1 = 3*0 .... multiply both sides by 3

P-1 = 0

P = 1 ... add 1 to both sides

m+n = 1 .... replace P with m+n

So that's why the answer is 1

5 0
2 years ago
Sarah's surfboards charges a fee of $60 to rent a surfboard and then $10.50 per hour. Sally's surfboards does not charge a fee,
Zanzabum

Answer:

12 hours

Step-by-step explanation:

Let the number of hours be represented as h.

Sarah's surfboards charges a fee of $60 to rent a surfboard and then $10.50 per hour.

Mathematically ,

60 + 10.50h

Sally's surfboards does not charge a fee, but they cost $15.50 per hour

Mathematically,

15.50h

Equating both equations together

60 + 10.50h = 15.50 h

Collect like terms

60 = 15.50h - 10.50h

60 = 5h

h = 60/5

h = 12 hours

Therefore, the number of hours that the cost will be the same to rent a surfboard for each shop is 12 hours.

7 0
2 years ago
Marissa spent a total of 240 minutes exercising last week. How many minutes did she spend walking ? If she walked 45%
raketka [301]
108 minutes because 50 percent of 240 is 120 so take 5 percent away and it is 108
3 0
2 years ago
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