Question

if a airplane flies 105 miles in 1/2 hour how far can it fly from 1 and 1/4 hour at the same rate of speed

Answer 1

To answer this question, we can set up a proportion. The left side will be what is know about the plane and the right side will contain the unknown:

$\frac{105mi}{0.5hr}=\frac{x}{1.25hr}$

Then we can cross multiply and solve for x:

$0.5x=131.25$

$x=262.5mi$

So now we know that in 1.25 hours, the plane can fly 262.5 miles.

Answer 2

262.5 miles. The plane travels 52.5 miles every 1/4 hour (105/2). 52.5 x 5=262.5