Question

A light bulb consumes
6480
watt-hours in
4
days and
12
hours. How many watt-hours does it consume per day?

Answer 1

hmmm hold the mayo... got that a bit off

Answer 2

well, the day has 24 hrs, or 12 + 12
meaning, that 12 is really half a day, or 0.5day
so 4days and 12 hours is really 4.5days

so \(\begin{array}{ccllll}
watt-hours&day
\\\hline\\
6480&4.5\\
x&1
\end{array}\implies \cfrac{6480}{x}=\cfrac{4.5}{1}\)