If y is 2.5 when x ls 5 and y varies directly with x, find y when x is 10​

Question

If y is 2.5 when x ls 5 and y varies directly with x, find y when x is 10​

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Parker 6 days 2021-10-11T19:39:03+00:00 1 Answer 0

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    2021-10-11T19:40:03+00:00

    Answer:

    y = 5

    Step-by-step explanation:

    Given y varies directly with x then the equation relating them is

    y = kx ← k is the constant of variation

    To find k use the condition y = 2.5 when x = 5

    k = \frac{y}{x} = \frac{2.5}{5} = 0.5

    y = 0.5x ← equation of variation

    When x = 10, then

    y = 0.5 × 10 = 5

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