Solve each of the following system of equations by substitution. (a) y=x+8
y=4x -1
(b) y=-3x+5
2x+y = 6
(c) 4x+3y=37
y=x - 4
(d) x - 5y = -49
y= -2x + 1

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

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.

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?