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30 September, 07:02

A city has 4 new houses for every 9 old houses. If there are 28 new houses in the city, how many old houses are there?

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Answers (2)
  1. 30 September, 07:47
    0
    There would be 63 old houses because 28/63 is the same as 4/9
  2. 30 September, 10:05
    0
    63 old houses

    Step-by-step explanation:

    4/9 = 28/x

    28 times 9 divided by 4 = 63

    (cross multiply)
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