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A city has 4 new houses for every 9 old houses. If there are 20 new houses in the city, how many old houses are there?
A. 43
B. 49
C. 45
D. 47

Respuesta :

Answer:

b

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

4 times 5 =20 and 9 times 5=45

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