A row of houses all share a community space where they put up their clotheslines. There are 2 clotheslines for every house on the street. On the street, there are a total of 11 children and 20 adults. Each child currently has 4 items of clothing on the clotheslines and each adult currently has 3 items of clothing on the clotheslines. If each clothesline can hold 2 items of clothing and all of the clotheslines are full, how many houses are on the street?
From the children, there are a total of 11 children * 4 items of clothing each = <T>multiply(11, 4)=44 items of clothing on the clotheslines.
From the adults, there are a total of 20 adults * 3 items of clothing each = <T>multiply(20, 3)=60 items of clothing on the clotheslines.
So there are a total of 44 + 60 = <T>add(44, 60)=104 items of clothing on the clotheslines.
This means that there are 104 items of clothing / 2 items of clothing per clothesline = <T>divide(104, 2)=52.0 clotheslines.
There are 2 clotheslines per house so there must be 52 clotheslines / 2 = <T>divide(52, 2)=26.0 houses on the street.
