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Sagot :
Answer:
45 feet
Step-by-step explanation:
Use ratios:
[tex]\frac{1}{72}= \frac{7.5}{x}[/tex]
x = 540 inches
divide by 12 to get 45 feet
The wingspan of the actual airplane is 45 feet.
What is ratio ?
Ratio is the comparison of two quantities having same units.
Example : Ratio of a & b is written as a/b, where b≠0
What is the required wingspan of the actual airplane ?
The scale of the model airplane is 1:72
Let, wingspan of the actual airplane = x inches
Using the ratio formula, we get,
1/72 = 7.5/x
⇒ x = 72×7.5
⇒ x = 540
So, the wingspan of actual airplane = 540 inches = 540/12 feet = 45 feet.
Learn more about ratio here :
https://brainly.com/question/20841591
#SPJ2
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