Answer:
10/18
Step-by-step explanation:
To convert 1.8 to a reciprocal, you first need to change it into a fraction.
1.8 basically expresses 1 
which equals 
.
Since a reciprocal is just switching the top and bottom of a fraction, your reciprocal of 1.8 will be 
.
You can simplify this if you want, to get 
. Either one is correct.
Please mark as Brainliest! :)
Converting from one units to another set of units, a conversion factor is needed. For this problem, the conversion factor would be 1 mile = 1610 m. We convert the value of <span>speed</span> of light from meters/second to miles/hour as follows:
3 x 10^8 m/s (1 mile / 1610 m) ( 60 s / 1 min ) ( 60 min / 1 hr ) = 6.71 x 10^8 miles / hr
