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lys-0071 [83]
2 years ago
12

Given that y is directly proportional to x. If y = 30 and x= 5, write an equation that connects y with x.

Mathematics
1 answer:
Licemer1 [7]2 years ago
8 0

Given:

y is directly proportional to x.

y=30 when x=5

To find:

The equation that connects y with x.

Solution:

It is given that, y is directly proportional to x. So,

y\propto x

y=kx                     ...(i)

Where, k is the constant of proportionality.

We have, y=30 when x=5. Substituting these values in (i), we get

30=k(5)

Divide both sides by 5.

\dfrac{30}{5}=k

6=k

Substituting k=6 in (i), we get

y=6x  

Therefore, the required equation is y=6x.

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Help me please I beg you
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