Jacqueline has two part-time jobs. She earn $15 per hr, l, working as a lab assistant, and $12 per hr, s, working as a cashier. This is modeled by 15l + 12s. Evaluate for l = 5 and s = 7 to find how much money Jacqueline will earn at her two jobs this week.

Answer 1

To find out how much money Jacqueline will earn at her two jobs this week, we need to evaluate the expression \(15l + 12s\) for \(l = 5\) (hours worked as a lab assistant) and \(s = 7\) (hours worked as a cashier).

Let's substitute the values into the expression:

\[ 15l + 12s = 15(5) + 12(7) \]

Calculating each term:

\[ 15(5) = 75 \] \[ 12(7) = 84 \]

Now, adding these two results together:

\[ 75 + 84 = 159 \]

Thus, Jacqueline will earn $159 this week from her two jobs.