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31 July, 22:14

Why are the solutions to the proportions StartFraction 50 over x EndFraction = StartFraction 10 over 20 EndFraction and StartFraction 10 over 50 EndFraction = StartFraction 20 over x EndFraction the same?

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  1. 1 August, 01:03
    0
    x=100

    Step-by-step explanation:

    50/x=10/20 and 10/50=20/x

    50/x=10/20

    Cross multiplication

    50*20=x*10

    1000=10x

    x=1000/10

    x=100

    Check:

    50/100=

    Divide by 5

    10/20

    10/50=20/x

    Cross multiplication

    10*x=50*20

    10x=1000

    x=1000/10

    x=100

    They are the same because the fraction that has the unknown both have the same ratio
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