8) y is inversely proportional to x?. When x = 4, y = 3. Find y when x = 5.

asked Apr 12, 2021 138k views

2 votes

8) y is inversely proportional to x?.
When x = 4, y = 3.
Find y when x = 5.

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5 votes

Answer:

$\displaystyle y=2.4$

Explanation:

$y\propto (1)/(x)$

$\displaystyle y=(k)/(x)$

$\displaystyle 3=(k)/(4)$

$\displaystyle 3 * 4=k$

$\displaystyle k=12$

$\displaystyle y=(12)/(5)$

$\displaystyle y=2.4$

Tim Newton answered Apr 18, 2021

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