X: y = 5:3 and x+ y=56 Work out the value of x-y

Question

X: y = 5:3 and x+ y=56
Work out the value of x-y

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Delilah 2 weeks 2022-01-08T15:15:42+00:00 1 Answer 0 views 0

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  1. Julia
    0
    2022-01-08T15:16:45+00:00
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    Answer:

    14

    Step-by-step explanation:

    Given: x : y = 5: 3

    Therefore, let x = 5a and y = 3a

    x + y = 56

    5a + 3a = 56

    8a = 56

    a = 56/8

    a = 7

    x = 5*7 = 35

    y = 3*7 = 21

    Therefore,

    x – y = 35 – 21 = 14

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45:7+7-4:2-5:5*4+35:2 =? ( )