Question

to meet building codes, a building must have a roof no taller than 96 feet.an architect is designing an office building with an 18 3/4 foot ground floor, and 11 ft. 8 inch upper floors. How many floors , including ground floor, can the building have?

Answer 1

`96ft-18(3)/(4)ft=77(1)/(4)ft\\\\11ft\ 8in=11(8)/(12)ft=11(2)/(3)ft\\\\77(1)/(4):11(2)/(3)=(309)/(4):(35)/(3)=(309)/(4)\cdot(3)/(35)=(927)/(140)=6(87)/(140)\\\\Answer:ground\ floor\ and\ 6\ upper\ floors.`