Answer:
The wingspan of the plane in feet is 72 feet .
Step-by-step explanation:
Let us assume that the wingspan of the plane be u .
As given
A model plane was designed using a scale factor of 1:48.
If the wingspan of the model is 18 inches.
Thus the proportion equation becomes
[tex]\frac{wingspan\ of\ the\ model}{ wingspan of the plane} = \frac{1}{48}[/tex]
Putting the values in the above
[tex]\frac{18}{x} = \frac{1}{48}[/tex]
Simplify the above
[tex]x = 18\times 48[/tex]
x = 864 inches .
As
[tex]1\ inche = \frac{1}{12}\ feet[/tex]
Now convert 864 inches into feet .
[tex]864\ inche = \frac{864}{12}\ feet[/tex]
= 72 feet
Therefore the wingspan of the plane in feet is 72 feet .