Math question: ????????????

Question

suppose there is this airplane with a ratio which is 1 in : 72 ft.

what is this answer in inches?

i found out it is 2.7 inches

BUT HOW I DONT GET it!??

Answer 1

I'm guessing you mean a model is 1in:72 ft scale.

You'll need to have the full-sized length of the plane in order to determine the length of the model.  (Or visa-versa)

You can then use a ratio of:

1/72 = m/r

Where m is length of model in inches and r is length of the real plane in feet.

Once you have one or the other, solve for the missing piece with cross-multiplication.

Answer 2

you just multiply 72 ft. by 2.7 in. which is 194.4

then you multiply 194.4 by 12 because there are 12 inches in 1 foot.

that makes 2332.8 inches.

i hope that helps!!! :D  

Answer 3

"Answer" to what?

It seems you are missing one key piece of data. The length of the plane.