A total of 120 adults and students attended a school volleyball game. Each adult paid $2.50, and each student
paid $1.00. The total paid by the adults and students
attending the game was $189.
Which of the following systems of equations can be used to
find a, the number of adults attending, and s, the number of
students attending the game?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

How do you convert 1.27 to a percentage

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.