Final answer:
Jow earned $40 mowing grass and $120 tutoring math students.
Step-by-step explanation:
To solve this problem, let's assume that the amount Jow earns for mowing grass is x dollars. According to the problem, Jow made three times as much money tutoring math students as he did mowing grass. This means that he made 3x dollars tutoring math students. The total amount of money Jow made is given as $160. We can set up an equation to represent this:
x + 3x = 160
Combining like terms, we get:
4x = 160
To solve for x, we divide both sides of the equation by 4:
x = 160/4
x = 40
Therefore, Jow earned $40 mowing grass and $120 tutoring math students.