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Julie made a scale drawing of a helicopter. She used the scale 1 in = 4 ft. If the helicopter’s rotors are 15 feet long, how long are they in her drawing?

Solve the equation to find out how long the rotors are in her drawing.

Please show your work, I will mark brainiest and send thanks on their profile if it is correct!

Respuesta :

To answer this, you will start with the scale of 1 in:4 ft. I suggest writing in fraction form -see picture.

Make this equivalent to x:15 ft (also in fraction form).

To set this up as an equation use cross products (multiply the diagonal sides)-see picture.

Then solve the equation by dividing both sides by 4.

Her rotors are 3.75 inches in her drawing.

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