Mathematics, 07.06.2021 15:50 HelloDarknessMyOldFr
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A fruit seller had apples and mangoes in the ratio of 3 : 4. He bought 30 more apples and sold
80 mangoes. As a result, the ratio became 6:5. How many apples and mangoes did he have at
first?
Answers: 1
Mathematics, 21.06.2019 17:30
Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny
Answers: 1
Mathematics, 21.06.2019 18:40
What value of x is in the solution set of 4x – 12 s 16 + 8x?
Answers: 3
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
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A fruit seller had apples and mangoes in the ratio of 3 : 4. He bought 30 more a...
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