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masya89 [10]
2 years ago
5

Kim’s age is twice that of her sister. When you add Kim’s age to her sisters age you get 42. How ils is each sister Write an equ

ation that represents the situation. Explain any variable used
Mathematics
1 answer:
Rudik [331]2 years ago
8 0

Step-by-step explanation:

Let Kim's sister age be x.

Kim's age 2x

<u>According to the question</u> :

2x + x = 42

X = 14

Kim's age = 28 years

Kim's sister's age = 14 years

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Answer:

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Step-by-step explanation:

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3 0
3 years ago
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Multiply y^2-16/2y . 5y/y-4
alisha [4.7K]
So, first we multiply the fraction by using the formula a/b times c/d= a times c/b times d
=(y^2-16) times 5y/2y(y-4)
Now, we cancel the common factor y
=(y^2-16) times 5/2(y-4)
Now, we factor 5(y^2-16)
We factor (y^2-16) first
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Rewrite 16 as 4^2
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Now, apply the formula x^2-y^2=(x+y)(x-y)
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5 0
3 years ago
Im so confused right now. how do I do this?
Sedbober [7]

Step-by-step explanation:

  1. V= L×W×H
  2. you only need to know one side to figure out the
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that's how you find the answer.

does that help?

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2 years ago
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Answer:

Answer is the graph below

Step-by-step explanation:

It is the green line by the way.

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2 years ago
Can I have some help with these? Thanks.
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The x^2 over the x is like subtracting x from x^2, so the new equation would be 9-x/-3. You divide 9 by -3 to get the final answer of -3-x, or -x-3, which is E.
5 0
3 years ago
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