The room is 5 inches long in the drawing.
Step-by-step explanation:
Given,
Scale drawing used by Kenneth;
1 inch = 4 feet
Ratio of scale = 1:4
Actual length of room = 20 feet
Let,
x be the length in drawing
Ratio of actual length = x:20
Using proportion
Scale ratio :: Actual ratio
[tex]1:4::x:20[/tex]
Product of mean = Product of extreme
[tex]4*x=20*1\\4x=20[/tex]
Dividing both sides by 4
[tex]\frac{4x}{4}=\frac{20}{4}\\x=5[/tex]
The room is 5 inches long in the drawing.
Keywords: ratio, proportion
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