Algebraic Expressions Unit Test

Question

Jacqueline has two part-time jobs. She earns $15 per hour, I , working as a lab assistant, and $12 per hour, s , working as a cashier. This is modeled by 15l + 12s. Evaluate for I = 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 earns this week, we need to evaluate the expression \( 15l + 12s \) given that \( l = 5 \) (hours as a lab assistant) and \( s = 7 \) (hours as a cashier).

Substituting the values into the expression:

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

Calculating each term:

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

Adding these amounts together:

\[ 75 + 84 = 159 \]

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