Answer:
264 ft/sec
Step-by-step explanation:
We need to use the conversion factors
5280 ft/ 1 mi, 60 min/ 1 hr , and 60 sec/1 min
180 miles 1 hour 1 min 5280 ft
----------------- * ----------------- * ------------ * ---------------
hour 60 minutes 60 sec 1 miles
The hours, minutes and miles cancel are we are left with ft/sec
180 *5280 ft
----------------- * -----------------
60*60 sec
264 ft/sec
This is the commutative property (of addition, but this applies to multiplication as well)It doesn't matter which order the numbers are added in, the same result will be achieved.1+2 = 2+12*4 = 4*2
The correct answer is 30+100u. Hope this helps!!
