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Question 1136182: A model plane is built on a scale of 1: 180. The actual length of the plane is 210 feet (2,520 inches). Find the length of the model.
Answer by ikleyn(52824)   (Show Source):
You can put this solution on YOUR website! .
Without making any excessive actions, simply divide 2520 inches by 180 to get the model size in inches, since it is obvious what to do.
Or, if you want a formal solution, use the proportion
 =  ,
and find x, the unknown model length, from this proportion
x =  = 14 inches. ANSWER
Solved.
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On proportions, see the lessons
- Proportions
- Using proportions to solve word problems
- Using proportions to solve word problems in Physics
- Using proportions to solve Chemistry problems
- Using proportions to estimate the number of fish in a lake
- HOW TO algebreze and solve these problems using proportions
- OVERVIEW of lessons on proportions
in this site.
These lessons were written specially for you.
Read them and become an expert in this area.
Start from the very first lesson.
Consider these lessons as your textbook, handbook, tutorials and (free of charge) home teacher.
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