Mathematics, 20.09.2020 15:01 Hazy095
Arsenia has 70 movie posters and 50 band posters. She plans to sell 28 movie posters. She says that if she also sells 28 band posters, the ratio of movie posters to band posters stays the same. Is that true? Why or why not? Complete the explanation.
Answers: 3
Mathematics, 21.06.2019 18:00, Sanchezj104
Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items
Answers: 3
Mathematics, 21.06.2019 20:00, Chen5968
The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
Answers: 2
Mathematics, 21.06.2019 20:20, bbyjoker
Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?
Answers: 1
Arsenia has 70 movie posters and 50 band posters. She plans to sell 28 movie posters. She says that...
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