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raketka [301]
3 years ago
11

-5m-9/n+5 + -8m+8/n+5

Mathematics
1 answer:
iren [92.7K]3 years ago
3 0

Answer:

(-13m - 1)/(n + 5).

Step-by-step explanation:

-5m-9/n+5 + -8m+8/n+5

The denominators are the same so we add the numerators:

= (-5m - 9 - 8m + 8 / (n + 5)

= (-13m - 1)/(n + 5).

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6 0
3 years ago
One third of the candidates for a job were 25 years old or younger. two sevenths of the candidates were at least 50 years old. i
Shalnov [3]
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7 0
3 years ago
What are distinct angles?
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4 0
3 years ago
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
Scorpion4ik [409]

Answer:

  • 26 ounces of 55% solution
  • 104 ounces of 80% solution

Step-by-step explanation:

Let x represent the quantity of 80% solution. Then 130-x is the amount of 55% solution. The total amount of salt in the mix is ...

  0.80x +0.55(130 -x) = 0.75·130

  0.25x = 0.20·130 . . . . . . . subtract 0.55(130)

  x = 0.20/0.25(130) = 104

  130-x = 26

She should use 26 ounces of 55% solution and 104 ounces of 80% solution.

5 0
3 years ago
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Y=3x
x-2
The correct answer is y=6
5 0
3 years ago
Read 2 more answers
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