Will make you brainliest!!! If y varies as x and y=5 when x=8 find y when x=9 enter your answer in a decimal ( rounded to 2 decimals)

Question

Will make you brainliest!!!
If y varies as x and y=5 when x=8 find y when x=9 enter your answer in a decimal ( rounded to 2 decimals)

in progress 0
Hailey 1 month 2021-09-16T21:21:47+00:00 1 Answer 0

Answers ( )

    0
    2021-09-16T21:23:21+00:00

    Answer:

    y=5.63

    Step-by-step explanation:

    Given

    y varies directly with x

    This means

    yx

    This can be written as:

    y=k\ x

    where k is the constant of proportionality.

    We know that when x=8 then y=5. Using this we can find value of k.

    so, we have

    5=k(8)

    Dividing both sides by 8 to isolate k.

    \frac{5}{8}=\frac{k(8)}{8}

    k=\frac{5}{8}

    when x=9 then y will be

    y=\frac{5}{8}\times 9

    y=\frac{45}{8}\approx 5.63 (Answer)

Leave an answer

Browse
Browse

27:3+15-4x7+3-1=? ( )