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21 April, 13:26

What is the solution to the proportion 6/10 = 9/x

A. 30

B. 15

C. 13

D. 5.4

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Answers (2)
  1. 21 April, 13:37
    0
    6/10 - 9/x = ?

    9/x (simplify)

    6/10 - 9/x = ?

    3/5 (simplify this as well)

    3/5 - 9/x=?

    L (denominator) : 5

    R (denominator) : x

    LCM (Least common multiple) : 5 (x)

    Switch the denominators around

    L (denominator) : x

    R (denominator) : 5

    3 (x) - 45 / 5 (x)

    3 (x) ➡3 (x - 15)

    3 (x) - 15 / 5 (x) = ?

    3 (x) - 15 = ?

    3 = ? (lets solve this problem)

    x - 15 = ?

    Now, lets add (+) the number 15 from each of the side sides of the problem that is shown above. (x - 15 = ?)

    Finally, we get our result of this problem

    x = 15
  2. 21 April, 13:54
    0
    The answer is B 15 ...

    First flip both side: 10/6 = x/9

    Find for x:

    (10/6) = * / 9

    (10/6) * 9 = x

    x = 15
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