The wingspan of the airplane in the drawing is 9 inches.
Using the parameters given for our Calculation;
- 1 inch = 9 feets
- Real wingspan = 90 feets
To calculate the length of the wingspan in the drawing, we create a proportional expression thus ;
1 inch = 9 feets
x inch = 90 feets
cross multiply
9x = 90 × 1
9x = 90
divide both sides by 9 to isolate x
9x/9 = 90/9
x = 9 inches
Therefore, the wingspan of the airplane in the drawing is 9 inches.
complete question
In a scale drawing of an airplane, 1 inch represents 9 feet. The wingspan of the real airplane is 90 feet. What is the wingspan of the airplane in the scale drawing?