Question

The Wright brothers flyer had a 48 inch wingspan Carla bought a model of of the plane with a scale factor of 1 to 40 what is the model s wingspan

Answer 1

`\bf \cfrac{model}{actual}\qquad 1:40\qquad \cfrac{1}{40}=\cfrac{x}{48}\implies \cfrac{48\cdot 1}{40}=x`