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laila [671]
3 years ago
7

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 house

s were sold. How many houses are left to be sold?
Mathematics
1 answer:
shepuryov [24]3 years ago
8 0

Answer: 22 houses.


Step-by-step explanation:

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

70houses*\frac{2}{5}=28houses

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

28houses*\frac{5}{7}=20houses

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

70houses-28houses-20houses=22houses


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