Systems of equations Word problems quiz

Amy sold 10 packages of sugar cookies and 2 packages of Chocolate cookies for $56. Adam sold 9 packages of sugar cookies and 3 packages of Chocolate cookies for $60. What Equations would represent the number of cookies sold by Adam and Amy?

• 10s+2c=56

  9s+3c=60

• 10s+9c=60

  3s+2c=56

• S+C=56

  S-C=60

• 12S=56

  11C=60

Tags

CCSS.8.EE.C.8C

10s+2c=56

9s+3c=60

If you were to eliminate for C, what would both equations possibly look like?

• -30s-6c=-168

  18s+6c=120

• 30s+6c=60

  3s+2c=56

• -10S+2C=56

  10S-10C=60

• S=56

  C=60

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

-30s-6c=-168

18s+6c=120

If you were to eliminate for C, what would the new equation and answer for S be?

• -12S=-48

  S=4

• 48S=48

  S=1

• 0S=48

  S=0

• 12S=288

  S=24

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Knowing S=4

Use the original 2 equations to Solve for C

10s+2c=56

9s+3c=60

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Amy sold 10 packages of sugar cookies and 2 packages of oatmeal cookies for $56. Adam sold 9 packages of sugar cookies and 3 packages of oatmeal cookies for $60. What is the price of 1 pack of sugar cookies and 1 pack of oatmeal cookies?

• Sugar Cookies $5 
  Oatmeal Cookies $3
• Sugar Cookies $4
  Oatmeal Cookies $8
• Sugar Cookies $2
  Oatmeal Cookies $6
• Sugar Cookies $3
  Oatmeal Cookies $6

Tags

CCSS.8.EE.C.8C

Some students want to order shirts with their school logo. One company charges $9.65 per shirt plus a setup fee of $43. Another company charges $8.40 per shirt plus a $58 fee. Which equation represents the number of shirts when both companies charge the same amount? 

• y = 9.65 + x
  y = 8.40 + x
• y = 9.65x + 43
  y = 8.40x + 58
• y =9.65x
  y = 8.40x
• y = 9.65x - 43
  y = 8.40x - 58

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.REI.B.3

CCSS.HSA.REI.D.11

CCSS.HSA.SSE.A.1

Homer sells tickets for admission to your school play and collects a total of $104. Admission prices are $6 for adults and $4 for children. He sold 21 tickets total. Solve the system:
x + y = 21
6x + 4y = 104

• (10, 11)
• (12, 9)
• (11, 10)
• (9, 12)

Tags

CCSS.8.EE.C.8C