A man buys a hammer for $40 and sells it for $50.
Calculate the percentage profit/loss.<...
Mathematics, 18.03.2021 02:50 maylindominguez
A man buys a hammer for $40 and sells it for $50.
Calculate the percentage profit/loss.
Answers: 3
Mathematics, 21.06.2019 12:40
Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.
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Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 21.06.2019 23:00
Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.
Answers: 1
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