Me on these problems, its urgent! ( for any of these would be greatly appreciated! )
1. a gro...
Mathematics, 17.09.2019 16:30 coreen9
Me on these problems, its urgent! ( for any of these would be greatly appreciated! )
1. a grocer mixes two grades of coffee which sell for 70 cents and 80 cents per pound, respectively. how much of each must he take to make a mixture of 80 pounds which he can sell for 76 cents per pound?
2. how many quarts of pure alcohol must be added to 40 quarts of a mixture that is 35% alcohol to make a mixture that will be 48% alcohol?
3. if a container contains a mixture of 5 gallons of white paint and 11 gallons of brown paint, how much white paint must be added to the container so that the new mixture will be two-thirds white paint?
4. can the sum of three consecutive odd integers be (a) 25? (b) 45?
5. a tank can be filled in 9 hours by one pipe alone, in 12 hours by a second pipe alone, and can be drained when full, by a third pipe, in 15 hours. how long would it take to fill the tank if it is empty, and if all pipes are in operations?
Answers: 1
Mathematics, 21.06.2019 19:30
Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 20:00
Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.
Answers: 1
Mathematics, 21.06.2019 22:30
Which of the following circles have their centers in the third quadrant? check all that apply.
Answers: 1
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Y+ 2/y is it a polynomial in one variable or not? and if so, why?
Answers: 1
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