Jan 24 Do Now

What has to be done BEFORE you start solving a basic two-step equation?

• distributive property, combining like terms, and getting the variables all on one side

• distibutive property, move the variables to one side, cimbine like terms

• distributive property, cancel the constants, get variables to one side

• distributive property, combine like terms, eliminate the constant

Tags

CCSS.8.EE.C.7

Clean fast charges $2 per window plus a $15 fee. See Out charges $3 per window plus a $5 fee. When will their costs be the same?

• 2+15x=3+5x
• 2x+15=3x+5
• 2x-15=3x-15
• 2-15x=3-5x

Tags

CCSS.8.EE.C.7

CCSS.8.F.B.4

CCSS.8.SP.A.3

The model represents an equation. What is the solution for the equation?

Tags

CCSS.8.EE.C.7

The Frederick County Fair costs $15.00 to get in and $2.50 per ride, while the Montgomery County Fair costs $10.00 to get in and $3.00 per ride. Which equations could be used to determine how many rides you would need to go on for both fairs to be of equal value?

• 15x + 2.5 = 10x + 3

• 15 - 2.5x = 10 - 3x

• 15 + 2.5x = 10 + 3x

• 15 - 10 = 2.5x + 3x

Tags

8.17

Taxi company A charges $8.00 to get into the cab and $0.75 per mile. Taxi company B charges $6.00 to get into a cab and $1.25 per mile. How many miles would the cost be the same for both companies? 

• 2 miles 
• 4 miles
• .50 mile
• -4 miles 

Tags

8.17

Solve: 
–3(7p + 5) = 27

• p = -2
• p = -12/21
• p = 21
• p = 2

Tags

CCSS.8.EE.C.7

John's Gym charges a $20 membership fee and $5 per class. Sarah's Gym charges a $10 membership fee and $7 per class. How many classes would you need to attend for the total cost to be the same at both gyms?

• 20 + 7x = 10 + 5x

• 20 + 5x = 10 + 7x

• 20 - 5x = 10 - 7x

• 20x + 5 = 10x + 7

Tags

CCSS.8.EE.C.7

CCSS.8.F.B.4

CCSS.8.SP.A.3

CCSS.8.F.A.1

CCSS.8.F.A.3

Company X charges $50 for a service call and $30 per hour of labor. Company Y charges $40 for a service call and $35 per hour of labor. How many hours of labor would result in the same total cost for both companies?

• 50 + 35x = 40 + 30x

• 50x + 30 = 40x + 35

• 50 + 30x = 40 + 35x

• 50 - 30x = 40 - 35x

Tags

CCSS.8.EE.C.7

CCSS.8.F.B.4

CCSS.8.SP.A.3

What is the first step in solving a multi-step equation involving distribution and combining like terms?

• Eliminate the constant

• Apply the distributive property

• Combine like terms

• Move variables to one side

Tags

CCSS.8.EE.C.7

Level 3

Solve for w

• w = 2

• w = 4

• w = 6

• w = 8

Tags

CCSS.8.EE.C.7