Two-step Equations

A cell phone company charges $3.00 to make a phone call plus $0.15 for each minute for each minute you talk. Which equation would you use to determine the total cost, c, of a phone call that is m number of minutes long?

• c = 3.00 - 0.15m
• c = 0.15 + 3.00m
• 3.00 = c + 0.15
• c = 3.00 + 0.15m

Tags

CCSS.6.EE.C.9

9x -7 = -7

• 4
• 0
• 5

Tags

CCSS.7.EE.B.4A

-15 = -4m + 5

• 4
• 7
• 5

Tags

CCSS.7.EE.B.4A

-9x + 1 = -80

• -9
• 9
• 6

Tags

CCSS.7.EE.B.4A

Solve for a

• a= -2

• a= -6

• a= 3

• a= 15

Solve for w

• w = 2

• w = 4

• w = 6

• w = 8

-5 + 7k = -19

• -3

• 5

• 2

• -2

Tags

CCSS.7.EE.B.4A

4 - 3y = 31

• 9

• 10

• -9

• -10

Tags

CCSS.7.EE.B.4A

When solving an equation, our goal is to:

• bake cookies.
• use a calculator.
• eat lunch.
• find the unknown value.

Tags

CCSS.7.EE.B.4A

WRITE AN EQUATION
April had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

• n=total cost pencils; 7n+10=24
• n=cost of 1 pencil; 7n-10=24
• n=cost of 1 pencil; 7n+10=24
• n=cost of 1 pencil; -7n-10=24

Tags

CCSS.HSA.CED.A.3