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liraira [26]
3 years ago
6

If y varies directly with x and y = 25 when x = 5, what is the value of k? how does this work when y = kx?

Mathematics
2 answers:
NISA [10]3 years ago
7 0
<h2>Answer:</h2>

The value of k when x=5 and y=25 is:

                              k=5

<h2>Step-by-step explanation:</h2>

Direct variation--

Two variables are said to be in direct variation if one variable could be written as a constant multiple of the other variable.

i.e. x and y are said to be in direct variation.

if there exist a constant k such that:

             y=kx

or if x is non-zero then we have:

k=\dfrac{y}{x}

Here we are given x=5 and y=25

This means that the value of k is:

k=\dfrac{25}{5}\\\\i.e.\\\\k=5

Savatey [412]3 years ago
3 0
If y = 25 and x = 5

25 = 5k

k = 5
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