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Blababa [14]
3 years ago
12

Find the constant of variation k for the inverse variation. Then write an equation for the inverse variation. y = 2.5 when x = 9

Mathematics
2 answers:
Ahat [919]3 years ago
7 0
1. k = 2<span>2.5</span><span>
2. xy=k
  

thats what i got</span>
attashe74 [19]3 years ago
7 0

the answer is

k = 22.5 xy= 22.5

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Simplify 10+6/2+3<br> 16/5<br> 3<br> 7<br> 11/3
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Step-by-step explanation:

\text{If}\ 10+\dfrac{6}{2}+3=10+3+3=16\\\\\text{If}\ \dfrac{10+6}{2+3}=\dfrac{16}{5}

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Please help me with question 19
Ksenya-84 [330]

Alright, lets get started.

Suppose the smaller integer = n

So, larger integer will be = n+2

3 times of larger integer will be = 3(n+2)

smaller integer is added into this , so

n +3 (n+2)

The result is 2 less than 5 times of smaller integer, so

5n - 2

Both are equal so,

n + 3 (n+2) = 5n - 2

n + 3n + 6 = 5n - 2

Rafael makde the mistake that he didn't put the larger integer into parenthesis like (n+2) , so three times will be 3 n + 6 as he got 3n + 2

So, the correct equation is

n +3n +6 = 5n - 2

Solving the equation

4n + 6 = 5n - 2

n = 8

So, saller integer is 8 and larger integer is 8 + 2 = 10

So, both integers are 8 and 10.  :  Answer

Hope it will help :)


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