we have

This is a mixed number
we know that
A mixed number is a combination of a whole number and a fraction.
So
is equal to

where
is the whole number
is the fraction

therefore
the answer is

Check the picture below.
recall the ambiguous SSA case, as the "12" side moves, it ends up with two supplementary angles on the base.
Answer:

Step-by-step explanation:
Given


Required
Determine the average speed
This is calculated as thus:

Convert time to hour:








