Mathematics, 02.07.2019 22:30, misle
An electronics store makes a profit of $30 for every portable dvd player sold and $60 for every dvd recorder sold. the manager’s target is to make at least $250 a day on sales of the portable dvd players and dvd recorders. write an inequality that represents the number of both kinds of dvd players that can be sold to reach or beat the sales target. let p represent the number of portable dvd players and r represent the number of dvd recorders. a. 60p + 30r ≥ 250 b. 30p + 60r ≤ 250 c. 30p + 60r ≥ 250 d. 30p + 60r > 250
Answers: 2
Mathematics, 21.06.2019 17:50, domiyisthom
On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.
Answers: 2
Mathematics, 21.06.2019 18:30, juliaduenkelsbu
Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?
Answers: 2
Mathematics, 21.06.2019 19:00, Marleneg
An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .
Answers: 1
An electronics store makes a profit of $30 for every portable dvd player sold and $60 for every dvd...
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