Jacqueline has two part time jobs she earns $15 per hour j working as a lab assistant and $12 per hour s working as a cashier this is modeled by 15j +12s
The expression 15j + 12s represents the total amount of money Jacqueline earns in a given period of time, where j is the number of hours she works as a lab assistant and s is the number of hours she works as a cashier.
For example, if Jacqueline works 10 hours as a lab assistant (j = 10) and 15 hours as a cashier (s = 15), the expression would be:
15(10) + 12(15) = 150 + 180 = $330
Therefore, in this case, Jacqueline would earn $330 in total.
The expression 15j + 12s represents Jacqueline's total earnings from her two part-time jobs.
Here, j represents the number of hours Jacqueline works as a lab assistant, and s represents the number of hours she works as a cashier.
Multiplying the hourly rate of $15 (for the lab assistant job) with the number of hours worked as a lab assistant (j) gives us the earnings from the lab assistant job (15j).
Similarly, multiplying the hourly rate of $12 (for the cashier job) with the number of hours worked as a cashier (s) gives us the earnings from the cashier job (12s).
By adding these two amounts together, we get the total earnings: 15j + 12s.
The expression 15j + 12s represents the total earnings of Jacqueline from her two part-time jobs. In this expression, 'j' represents the number of hours worked as a lab assistant, and 's' represents the number of hours worked as a cashier.
To calculate Jacqueline's total earnings, you need to know the number of hours she worked in each job. Once you have that information, you can substitute those values into the expression and calculate the result.
For example, let's say Jacqueline worked 10 hours as a lab assistant (j = 10) and 15 hours as a cashier (s = 15). To find her total earnings, you substitute these values into the expression:
Total earnings = 15j + 12s
= 15(10) + 12(15)
= 150 + 180
= $330
Therefore, if Jacqueline worked 10 hours as a lab assistant and 15 hours as a cashier, her total earnings would be $330. The expression 15j + 12s allows you to calculate her earnings for any combination of hours worked in each job.