Answer: 18/5 hours, or 3.6 hours
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Work Shown:
x = amount of time it takes Blake to do the job by himself
y = amount of time it takes Ned to do the job by himself
z = time it takes if they worked together
In this case,
x = 9 and y = 6
Use those values to find z.
Subtract the amount drank from the initial amount made.
Answer:
Check the picture below.
as you recall from the previous exercise, x = 74°, now, using the "inscribed angle theorem" as you saw already, the green intercepted arc is 160°, so y = 160° - 74°.
as far as ∡z, well, we can just use the "inscribed quadrilateral conjecture".
