Math11
posted by Sari .
A model airplane is made on a scale of 1:128.
A)What is the scale factor of the model?
B)If the airplane has a wingspan of 30 cm, what is the wingspan of the actual airplane
Need help on this.

A)
1 / 128
B )
30 * 128 = 3840 cm = 38.4 m
Remark:
1 m = 100 cm
3840 cm / 100 cm = 38.4 m
Respond to this Question
Similar Questions

math
A model of an airplane is 8 inches long. If the actual airplane is 32 feet: What is the scale factor? 
math
The scale used to build a model of a Boeing 747 is 1:80. Find the actual wingspan of the plane giving the the wingspan of the model was 75 centimeters. Express your answer in meters. 
Math
A Boeing 747 jet is approximately 230 ft. long and has a wingspan of 195 ft. If a scale model of the plane is about 40 cm long, what is the modelâ€™s wingspan? 
math
Puck is making a scale model of an airplane. The actual airplane is 98 feet long. The scale of the model is 1 cm : 4.7 ft. What is the length of the model? 
Scale Representations
A model airplane is made on a scale of 1:128. A)What is the scale factor of the model? 
Math
A model airplane is made on a scale of 1:128. A)what is the scale factor? 
scale factors
The model of airplane has a wings[an of20 inches. The model scale of 1 inch = 3.5 feet. what is the wingspan of the actual airplane. 
Math
A model of an airplane is 11 inches in length. The actual length of the airplane is 209 feet. What is the scale used to build the model? 
MATH
A model airplane is 11 inches in length. The actual length of the airplane is 209 feet. what is the scale used to build the model? 
Math
The wingspan of a Boeing 747400 is 64.4 metres. a. If a scale model is built to the scale 1:20, what would the wingspan of the model be in centimetres?