Joe is training to run in a half marathon in two months. This week he ran 1, 200,000 millimeters on Monday, 2, 400 meters on Wednesday, and 4.6 kilometers on Friday. What is the total distance in kilometers that he ran this week?
TI

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?