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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asked May 13, 2020 10.6k views

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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?

Mathematics
middle-school

AmazingTurtle asked

by AmazingTurtle

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2 Answers

3 votes

Answer:

63 old houses

Explanation:

4/9 = 28/x

28 times 9 divided by 4 =63

(cross multiply)

NoWar answered May 16, 2020

by NoWar

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3 votes

There would be 63 old houses because 28/63 is the same as 4/9

ModernCarpentry answered May 17, 2020

by ModernCarpentry

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