Question

It took 3.5 hours for an airplane traveling at a constant speed of 550 miles per hour to reach its destination. What distance did the airplane travel until it reached its destination?

Answer 1

The formula that we want to use here is S = D/T.

S = Speed
D = Distance
T = Time

So, we know that S = 550 and T = 3.5, so we can plug them in. 

We get 550 = D/3.5 
Multiply by 3.5 on each side, and you figure out that the plane has traveled 1925 miles.