Mathematics, 21.07.2019 02:00 ndurairajownkpq
Bethany, lauren, amanda, and david all meet at a family reunion. they are comparing their ages. they have found that lauren is 13 years older than bethany and david is 11 years older than amanda. they also found that the product of bethany's and lauren's ages is equal to twice amanda's age. also, if they subtract 20 years from both bethany's and lauren's age, the product is equal to david's age. if x represents bethany's age and y represents amanda's age, then which of the following systems of equations can be used to determine the ages of all four family members based on their findings?
Answers: 2
Mathematics, 21.06.2019 17:00
Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?
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Mathematics, 21.06.2019 18:00
Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ
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Mathematics, 21.06.2019 18:30
Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?
Answers: 1
Mathematics, 21.06.2019 23:00
Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above
Answers: 2
Bethany, lauren, amanda, and david all meet at a family reunion. they are comparing their ages. they...
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