Answer:
12 3/8 ft
Step-by-step explanation:
The scale is 1 cm = 2 3/4 ft
The kitchen in the drawing is 4 1/2 cm
We can use proportions to solve. Put the drawing size over the real life size
1 cm 4 1/2 cm
---------- = -------------
2 3/4 ft x ft
Using cross products
1 *x = 2 3/4* 4 1/2
Changing from mixed numbers to improper fractions
x = (4*2+3)/4 * (2*4+1)/2
x = 11/4 * 9/2
= 99/8
8 goes into 99 12 times (12*8=96) with 3 left over
x = 12 3/8
