Math 7 Plus: Unit 7 Linear Equations and Linear Systems

The weight of a square is x units. The weight of a triangle is y units.

What equation models the hanger?

• 3x + y = 3y

• 3y + x = 3x

• 3x + 3y = y

• 4xy = 3y

Tags

CCSS.HSA.CED.A.3

The weight of a square is 2 units. The weight of a triangle is y units.

What equation models the hanger?

• 6 + y = 3y

• 3y + 2 = 6

• 6 + 3y = y

• 8y = 3y

Tags

CCSS.HSA.CED.A.3

The weight of a square is 2 units. The weight of a triangle is y units.

What is the weight of the triangle?

• 3

• 2

• 1

• 9

Tags

CCSS.7.EE.B.4A

• Add 6x to both sides

• Subtract 6x from both sides

• Multiply both sides by 11/5

• Add 6 to both sides

• x = -1

• x = 1

• x = 15/11

• x = 11/15

Tags

CCSS.6.EE.B.5

J’Annette and her neighbor, Claire, each have after school jobs.  J’Annette helps tutor kids at the library.  She earns $5 per hour plus $40 a month from the elementary school.  Claire’s earnings at the local ice cream shop are seen in the table below.

What equation would model the relationship between Claire's money earned (m) and the number of hours Claire works (h)?

• m = 7.5h

• h = 7.5m

• m = 7.5h + 7.5

• m = 45h

Tags

CCSS.6.EE.C.9

J’Annette and her neighbor, Claire, each have after school jobs.  J’Annette helps tutor kids at the library.  She earns $5 per hour plus $40 a month from the elementary school.  Claire’s earnings at the local ice cream shop are seen in the table below.

What equation would model the relationship between J'Annette's money earned (m) and the number of hours J'Anneette works (h)?

• m = 40 + 5h

• h = 40 + 5m

• m = 45h

• m = 5 + 40h

Tags

CCSS.6.EE.C.9

J’Annette and her neighbor, Claire, each have after school jobs.  J’Annette helps tutor kids at the library.  She earns $5 per hour plus $40 a month from the elementary school.  Claire’s earnings at the local ice cream shop are seen in the table below.

At what number of hours worked would the girls make the same amount of money?

• 16 hours

• 12 hours

• 8 hours

• 6 hours

Tags

CCSS.8.EE.C.8C

J’Annette and her neighbor, Claire, each have after school jobs.  J’Annette helps tutor kids at the library.  She earns $5 per hour plus $40 a month from the elementary school.  Claire’s earnings at the local ice cream shop are seen in the table below.

The girls worked the same number of hours, and made the same amount of money. How much money did they each make?

• $120

• $100

• $200

• $175