### Home > AC > Chapter 8 > Lesson 8.1.4 > Problem 8-39

8-39.

Write two equations representing their scores.

Jhalil: *y* = 10*x* + 850 *x* = time (weeks)

Joman: *y* = 50*x* + 570 *y* = score (points)

Set the two equations equal to each other and solve for *x*.

Substitute 12 for *x* in both the equations and compare the outcomes.