Percy works two part-time jobs to help pay for college classes. On monday, he works 3 hours at the library and 2 hours at the coffee cart and earns $36. 50. On tuesday, he works 2 hours at the library and 5 hours at the coffee cart and earns $50. His hourly wage at the library, x, and hourly wage at the coffee cart, y, can be determined using the system of equations below. 3x + 2y = 36. 50 2x + 5y = 50. 00 at which job does percy earn the greater hourly wage? how much does percy earn each hour at this job? percy earns a greater hourly wage of $7. 00 at the library. Percy earns a greater hourly wage of $7. 00 at the coffee cart. Percy earns a greater hourly wage of $7. 50 at the library. Percy earns a greater hourly wage of $7. 50 at the coffee cart.