Answer :
Final answer:
Joe worked 16 hours at Job A and 16 hours at Job B the week he made $209.60, by solving a system of linear equations based on his total hours and earnings.
Explanation:
Joe works two part-time jobs for a total of 32 hours a week. Job A pays $6.00 per hour, and Job B pays $7.10 per hour. The week he made $209.60, we need to determine how many hours he worked at each job.
Step 1: Formulate the equations
- Let x be the hours worked at Job A and y be the hours worked at Job B.
- Therefore, the total hours equation is: x + y = 32
- The total earnings equation from both jobs is: 6x + 7.10y = 209.60
Step 2: Solve the system of equations
Using the first equation, solve for y: y = 32 - x.
Substitute y in the earnings equation: 6x + 7.10(32 - x) = 209.60. Simplify and solve for x: x = 16.
Using x = 16, find y: y = 32 - 16, hence y = 16.
Joe worked 16 hours at each job the week he made $209.60.