Question

Question #85352

Answer 1

`21.25" ft"`

Explanation:

This is a unit cancellation problem. Bear in mind that when we write `"in"` we are referring to the blueprint and when we write `"ft"` we are referring to the actual house. If it is confusing saying two different lengths are equal, you can think of them as "blueprint inches" vs "real feet."

`2" in" = 5" ft"`

`=> (5" ft")/(2" in") = 1`

`8.5cancel(" in")xx(5" ft")/(2cancel(" in"))`

`=(8.5xx5)/2" ft"`

`=21.25" ft"`