Jacqueline has two part-time jobs Shirin $15 per hour one working as a lab assistant and $12 per hour S working as a cashier. This is modeled by 15 L +12 S evaluate L for five and asked for seven find out how much money Jacqueline well earned at her two jobs this week.
To find out how much money Jacqueline earned at her two jobs this week, we need to calculate the total earnings for each job and then add them together.
Let's start with the lab assistant job:
Jacqueline earns $15 per hour as a lab assistant.
If we let L be the number of hours she worked as a lab assistant, then her earnings for this job would be 15L.
Now let's move on to the cashier job:
Jacqueline earns $12 per hour as a cashier.
If we let S be the number of hours she worked as a cashier, then her earnings for this job would be 12S.
We are given that L = 5 (she worked for five hours as a lab assistant) and S = 7 (she worked for seven hours as a cashier).
Plugging these values into the equations, we get:
Earnings for lab assistant job = 15L = 15 * 5 = $75
Earnings for cashier job = 12S = 12 * 7 = $84
To find the total earnings, we add the earnings from both jobs:
Total earnings = Earnings for lab assistant job + Earnings for cashier job = $75 + $84 = $159
Therefore, Jacqueline earned $159 at her two jobs this week.