jossier210jossier210
jossier210jossier210 jossier210jossier210
  • 17-01-2019
  • Mathematics
contestada

There are 70 new houses being built in a neighborhood. Last month, 2/5 of them were sold. This month, 5/7 of the remaining houses were sold. How many houses are left to be sold?

Respuesta :

carlosego
carlosego carlosego
  • 17-01-2019

Answer: 22 houses.


Step-by-step explanation:

1. You can calculate the number of houses sold last month as following:

[tex]70houses*\frac{2}{5}=28houses[/tex]

2. You can calculate the number of the remaining houses sold this month as following:

[tex]28houses*\frac{5}{7}=20houses[/tex]

3. Then, the number of houses are left to be sold is:

[tex]70houses-28houses-20houses=22houses[/tex]


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