SOLUTION: I have a word problem I do not understand could someone PLEASE help? A toy airplane is 10 inches long. If the actual plane is 75ft. long, find the scale of the model.

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Question 25094: I have a word problem I do not understand could someone PLEASE help?
A toy airplane is 10 inches long. If the actual plane is 75ft. long, find the scale of the model.

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
The scale would be found by dividing the given dimension of the model plane by the known dimension of the real plane. Be sure that the units are all the same. All in inches or all in feet. Let's use inches, so convert 75 feet to inches.
(75 ft.)(12 in./ft) = 900 inches.
The scale is: 10%2F900+=+1%2F90 This is often written as: 1:90
The scale of the model is: 1:90