Question

Provide two or three pots of flowers for every 100 sq ft of floor space under a ceiling of 8 ft. If your classroom has an 8-ft ceiling and measures 35 ft by 40 ft, how many pots should it have?

Answer 1

you need to calculate the square feet of the ceiling, so you multiply the dimensions of the ceiling.

35(40)=1400ft^2

now, you know that for every 100 square feet you need a specific # of pots, so you divide 1400 by 100.
1400/100=14
now we know that there are 14 areas of 100 where you can place 2-3 pots.
so, you multiply 14 by 2 & by 3

14(2)=28
14(3)=42

so you know that you can have between 28-42 pots.