# Math

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On a radar screen the distance between two planes is 3 1/2 inches. If the scale is 1 inch on the screen to 2 miles in the air, what is the actual distance between the two planes.
Do I use x represent a distance. I'm stuck. Help!!!

• Math -

is it 7??

• Math -

I don't know but if I write in proportion 1/2=3.5/x
x=2*3.5
x=7.0

• Math -

The Plse Help person is rgt lol

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