math

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the ratio of the number of desktop computers sold to the number of laptops sold by a dealer is 5 to 9 if 20 desktop computers were sold then how many laptops wree sold?

  • math -

    Let n = number of laptops sold
    5 / 9 = 20 / n
    5n = 9 * 20
    5n = 180
    n = 36 laptops

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    thanks

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