Warm-up 11.8.17

What's the inverse of addition?

• subtraction
• rabbits
• division
• addition

WRITE AN EQUATION
You bought a magazine for $5 and four
erasers. You spent a total of $29. How
much did each eraser cost?

• 5 + x = 29
• -5 - 4x = -29
• 5x = 29
• 29 - 5 = -4x

Tags

CCSS.HSA.CED.A.3

WRITE AN EQUATION
For a field trip 4 students rode in cars and the rest filled nine buses. How many students were in each bus if 472 students were on the trip?

• 4x=472
• 9x=472
• 4+9x=472
• 4+x=472

Tags

CCSS.HSA.CED.A.3

To isolate x in x/a=b, what operation should you perform on both sides of the equation?

• Multiply both sides by a
• Divide both sides by a.
• Multiply both sides by b.
• Divide both sides by b.  

Tags

CCSS.HSA.REI.A.1

Mrs. Cathy, Mrs. Mitchell, Coach Mullins, and Mrs. Norris divided the cost of a pizza evenly.  If they each paid $6.50, what was the total cost of the pizza? 

• c/4 =6.50
• 4c = 6.50
• 6.50 +c = 4
• c - 4 = 6.50

Tags

CCSS.HSA.CED.A.3

y - 4.6 = 12

• 16.6
• 5.8
• 7.4
• Answer not Given

Tags

CCSS.6.EE.B.7

Solve for k:
3k + 5 = 23

• k = 4
• k = 5
• k = 6
• k = 7

Tags

CCSS.7.EE.B.4A

Which equation would describe "two times a number plus five equals 15"?

• x + 5 = 15
• 2x + 5=15
• x + 2(5) = 15
• 2(x + 5) = 15

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Working together, Joy and Steve collected 53 pounds of aluminum cans for recycling. If Joy collected 20 pounds, find the number of pounds, x, that Steve collected. Using x as your variable write an equation to solve.

• 20x=53
• x-20=53
• x-53=20
• x+20=53

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.C.9

WRITE AN EQUATION
For a field trip 4 students rode in cars and the rest filled nine buses. How many students were in each bus if 472 students were on the trip?

• 4x=472
• 9x=472
• 4+9x=472
• 4+x=472

Tags

CCSS.HSA.CED.A.3