Joelle's Work Hours and Earnings

The video tutorial explains how to determine the number of hours Joelle worked at her two jobs, babysitting and at her parents' grocery store. It introduces variables for the hours and pay, sets up equations based on the conditions provided, and solves these equations using algebraic methods to find the hours worked at each job. The tutorial emphasizes the use of substitution to solve the system of equations and verifies the solution by checking the conditions.

What are the two jobs Joelle has after school?

• Working at a bookstore and babysitting

• Tutoring and working at a cafe

• Babysitting and working at her parents' grocery store

• Working at a library and babysitting

Tags

CCSS.7.RP.A.2B

How much does Joelle earn per hour at the grocery store?

• $12

• $15

• $10

• $9.50

Tags

CCSS.6.EE.B.6

What variable is used to represent the hours Joelle worked babysitting?

• t sub g

• t sub b

• P sub b

• P sub g

Tags

CCSS.3.MD.A.1

What is the total number of hours Joelle worked last week?

• 15 hours

• 19 hours

• 25 hours

• 20 hours

Tags

CCSS.6.EE.C.9

What equation represents the relationship between Joelle's earnings at the grocery store and babysitting?

• P sub g = P sub b - 56

• P sub b = P sub g + 56

• P sub b = P sub g - 56

• P sub g = P sub b + 56

Tags

CCSS.6.NS.B.3

How much does Joelle earn per hour babysitting?

• $8.50

• $9.50

• $10.50

• $11.50

Tags

CCSS.7.EE.B.4A

What is the first step in solving the equations for Joelle's work hours?

• Add the hours worked at both jobs

• Subtract the hours worked at the grocery store

• Define the pay variables

• Substitute the pay expressions into the equation

Tags

CCSS.6.NS.B.3

What is the result of 9.5 times 19?

• 180.5

• 190.5

• 170.5

• 160.5

Tags

CCSS.1.MD.B.3

How many hours did Joelle work at the grocery store?

• 8 hours

• 11 hours

• 9 hours

• 10 hours

How many hours did Joelle spend babysitting?

• 9 hours

• 8 hours

• 7 hours

• 6 hours