You are designing a room for a house and are drawing a floor plan. the room is actually 18 feet wide. on your floor plan, you draw the room as 6 feet wide. what is the scale factor for the floor plan?

answer: the actual length and width of a room is 18 feet by 12 feet. the length and width of scale drawing of the room is 12 inches by 8 inches. what is the drawing?

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

if you need just tell me and i will come to the rescue.

step-by-step explanation: