Mathematics, 22.11.2019 00:31 hhh976
Melvin plays tennis and swims for a total of 110 minutes every day. he plays tennis for 40 minutes longer than he swims.
part a: write a pair of linear equations to show the relationship between the number of minutes melvin plays tennis (x) and the number of minutes he swims (y) every day. (5 points)
part b: how much time does melvin spend swimming every day? show your work. (3 points)
part c: is it possible for melvin to have spent 70 minutes playing tennis if he plays and swims for a total of exactly 110 minutes and plays tennis for 40 minutes longer than he swims? explain your reasoning. (2 points)
Answers: 1
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Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes
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17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.
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Melvin plays tennis and swims for a total of 110 minutes every day. he plays tennis for 40 minutes l...
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