Sally has made a scale drawing of the airplane, in which the wingpsan is 10 inches and the tailspan is 3 inches. What is the actual tailspan of the airplane?

Question

Mercury · Answer

|dw:1591484217656:dw| https://www.usatestprep.com/modules/gallery/files/20/2042/2042.gif

Mercury · Answer

the actual airplane wingspan is 24 feet ---> converting this to inches, 24 feet * 12 inches/ft = 288 inches

since the real airplane is 288 inches and the model wingspan is 10 inches, the scale factor is (288/10) or 28.8

therefore, you can multiply the model tailspan by 28.8 to get the real tailspan in inches, then divide by 12 inches/ft to convert back to feet

Mercury · Answer

answer choices, just so we have them

A)
7.2 feet

B)
13 feet

C)
14.2 feet

D)
18.4 feet