Janet works 36 hours a week between two parttime jobs during

Janet works 36 hours a week between two part-time jobs during the semester. She worst at a residence hall front desk assistant which pays $7.50 per hour. She also works as a supermarket cashier which pays $9.25 per hour. Define a function, k, that gives the number of hours Janet works as a supermarket cashier in terms of the varying number or hours she works as a residence hall front desk assistant, r. Define a Junction, f, that gives the amount of money Janet makes working as a resident hall front desk assistant in terms of the varying number of hours she works as a residence hall front desk assistant, r. Define a function, h, that gives the amount of money Janet makes working as a supermarket cashier in terms of the varying number of hours she works as a supermarket cashier, s.1 Use function notation to represent the amount of money Janet makes at a supermarket cashier in terms of the varying number of hours she works as a residence hall front desk assistant, r. Use your answers from (a, c, d) to help you define a function. that gives the amount of money Janet makes as a supermarket cashier in terms of the varying number of hours she works at a residence hall front desk assistant. r.

Solution

Total hrs whe works = 36

front desk assistant = r hrs

a) So, k = 36 - r

b) f = (r)*7.5 = 7.5r

c) h = (s)*9.25

d) h = ( 36 -r)*9.25