Question 1116899
An airplane flies 105 miles in ½ hour.  How far can it fly in 1 ¼ hours at the same rate of speed? 
<pre>It's not RATE of SPEED. It's either rate or speed....one or the other.

{{{matrix(2,5, 1/2, hour, "=", .5, hour, 1&1/4, hours, "=", 1.25, hours)}}}
Just set up the following proportion: {{{matrix(1,3, 105/D, "=", .5/1.25)}}}, with D being distance.
Now solve this for D, the distance you're looking for.