SOLUTION: There are 75 new houses being built in a neighborhood. Last month, 1/5of them were sold. This month, 2/5 of the remaining houses were sold. How many houses are left to be sold?

Algebra ->  Probability-and-statistics -> SOLUTION: There are 75 new houses being built in a neighborhood. Last month, 1/5of them were sold. This month, 2/5 of the remaining houses were sold. How many houses are left to be sold?       Log On


   



Question 1068139: There are 75 new houses being built in a neighborhood. Last month, 1/5of them were sold. This month, 2/5 of the remaining houses were sold. How many houses are left to be sold?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
There are 75 new houses being built in a neighborhood. Last month, 1/5of them were sold. This month, 2/5 of the remaining houses were sold. How many houses are left to be sold?
--------------
75 - (2/5)(1/5)75 = 75 - (2/25)75 = (23/25)75 = 23*3 = 69 houses leftl
-----------
Cheers,
Stan H.
------------