If the total labor cost is $865,000 and $78,000 is for parking attendants, what percentage of the yearly labor cost is for the p
2 answers:
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Taking the square root of both sides gives two possible cases,
or
Recall that
If and
, we have
so in the equations above, we can write
Then in the first case,
(where is any integer)
and in the second,
Then the solutions that fall in the interval are