1. 5 Minute Check
Solve. Complete in your notes. 1. x + 5 = c = f = n = 9.32

2. 5 Minute Check
Solve. Complete in your notes. 1. x + 5 = c = f = n = 7 8

3. 5 Minute Check
Solve. Complete in your notes. 1. x + 5 = 11

4. 5 Minute Check
Solve. Complete in your notes. 1. x + 5 = = -5 x = 6

5. 5 Minute Check
Solve and show work c = 74

6. 5 Minute Check
Solve. Complete in your notes c = = -45 c = 29

7. 5 Minute Check
Solve. Complete in your notes. 3. f = 9 10

8. 5 Minute Check
Solve. Complete in your notes. 3. f = = f = 1 10

9. 5 Minute Check
Solve. Complete in your notes n = 9.32

10. 5 Minute Check
Solve. Complete in your notes n = n = 1.87

11. OST Test Prep
Nancy is running on a trail that is 5.3 miles long. After 20 minutes, she has run 1.45 miles.
Part A: Write an addition equation to find how much farther Nancy has to run to complete the trail.
Part B: Solve the equation to find the number of miles Nancy has to run to get to the end of the trail.

12. OST Test Prep
Nancy is running on a trail that is 5.3 miles long. After 20 minutes, she has run 1.45 miles.
Part A: Write an addition equation to find how much farther Nancy has to run to complete the trail.

13. OST Test Prep
Nancy is running on a trail that is 5.3 miles long. After 20 minutes, she has run 1.45 miles.
Part A: Write an addition equation to find how much farther Nancy has to run to complete the trail.
If x represents how much trail is remaining, then
5.3 – 1.45 = x

14. OST Test Prep
Nancy is running on a trail that is 5.3 miles long. After 20 minutes, she has run 1.45 miles.
Part A: Write an addition equation to find how much farther Nancy has to run to complete the trail.
If x represents how much trail is remaining, then
5.3 – 1.45 = x, then
x = 5.3

15. OST Test Prep
Nancy is running on a trail that is 5.3 miles long. After 20 minutes, she has run 1.45 miles.
Part B: Solve the equation to find the number of miles Nancy has to run to get to the end of the trail.

16. OST Test Prep
Nancy is running on a trail that is 5.3 miles long. After 20 minutes, she has run 1.45 miles.
Part B: Solve the equation to find the number of miles Nancy has to run to get to the end of the trail.
x = 5.3
x = 3.85

17. USA Today – Jan 24, 2017
SAN FRANCISCO — Hey kids, want to grow up to land the best job in the country?
Then keep poring over those math and science textbooks.
Jobs that require a range of STEM skills (science, technology, engineering and math) claimed 7 of the top 10 spots in Glassdoor's new 50 best jobs in America survey new "50 Best Jobs in America” survey, out Monday.

18. USA Today – Jan 24, 2017
SAN FRANCISCO — Hey kids, want to grow up to land the best job in the country?
Then keep poring over those math and science textbooks.
Jobs that require a range of STEM skills (science, technology, engineering and math) claimed 7 of the top 10 spots in Glassdoor's new 50 best jobs in America survey new "50 Best Jobs in America” survey, out Monday.

19. USA Today – Jan 24, 2017
They ranked jobs by combining three factors: number of job openings, salary, and overall job satisfaction rating. 
#1 Data Scientist (4,184; $110,000)
#2 DevOps engineer (2,725 openings; $110,000)
#3 Data engineer (2,599 openings; $106,000)
#4 Tax manager (3,317 openings; $110,000)
#5 Analytics manager (1,958 openings; $112,000)
#7 Database Administrator (2,877; $93,000)
#10 Solutions Architect (2,232 openings; $125,000)

20. What do you think the average income is for a resident of Xenia?
USA Today – Jan 24, 2017
What do you think the average income is for a resident of Xenia?

21. The median household income in Xenia is $39,401 per year.
USA Today – Jan 24, 2017
The median household income in Xenia is $39,401 per year.
Household income is the combined income for the entire family.

22. Lesson 7.2/7.3.b Write and Solve Addition/Subtraction Equations
Monday, Jan 30
Lesson 7.2/7.3.b Write and Solve Addition/Subtraction Equations

23. Solve and Write Add/Sub Equations
Objective: To understand, solve and write addition/subtraction equations.

24. Solve and Write Add/Sub Equations
An equation is a mathematical sentence showing two expression are equal. An equation always has an equal sign. e.g. 6 + x = 13

25. Solve and Write Add/Sub Equations
An equation is only true if both sides are equal. A teeter totter will only be balanced if there is equal weight on both sides

26. Solve and Write Subtraction Equations
e.g. x - 2 = 4 The left side = The right side

27. Solve and Write Add/Sub Equations
When you replace a variable with a value that results in a true statement, you solve the equation. The value for the variable is the solution to the equation.

28. Solve and Write Add/Sub Equations
e.g. 7 + x = 9 The value for x that results in a true statement is 2. So, 2 is the solution = 9 9 = 9 This is a true statement

29. Solve and Write Add/Sub Equations
The goal in solving any algebraic equation is to get the variable on one side of the equal sign and a constant on the other side of the equal sign. e.g. x = 55 or 55 = x

30. Solve and Write Add/Sub Equations
Subtraction and Addition Property of Equality states if two expressions are equal and the exact same thing is added to or subtracted from both sides, the two sides will remain equal. What you do to one side of an equation you must do to the other side.

31. Solve and Write Add/Sub Equations
Solve. 54 = x - 31 How to Solve Algebraic Equation - Use the inverse operation to undo whatever is being done to the variable.

32. Solve and Write Add/Sub Equations
Solve. 54 = x - 31 How to Solve Algebraic Equation - Use the inverse operation to undo whatever is being done to the variable.
What is being done to the variable?

33. Solve and Write Add/Sub Equations
Solve. 54 = x - 31 How to Solve Algebraic Equation - Use the inverse operation to undo whatever is being done to the variable.
Subtracting 31. How can this be undone?

34. Solve and Write Add/Sub Equations
Solve. 54 = x - 31 How to Solve Algebraic Equation - Use the inverse operation to undo whatever is being done to the variable.
By adding 31 to both sides.

35. Solve and Write Add/Sub Equations
Solve. 54 = x – = x How to Solve Algebraic Equation - Use the inverse operation to undo whatever is being done to the variable.

36. Solve and Write Add/Sub Equations
Solve. 54 = x – = x Check by substituting 85 for x. 54 = 85 – = 54

37. Solve and Write Add/Sub Equations
Solve. v = 2.2

38. Solve and Write Add/Sub Equations
Solve. v = v = 4.3 Check: 4.3 – 2.1 = 4.3
On today’s assignment, everything in blue is the work to be shown.

39. Solve and Write Add/Sub Equations
Solve. r + 5 = 31

40. Solve and Write Add/Sub Equations
Solve. r + 5 = r = 26 Check: = 31
On today’s assignment, everything in blue is the work to be shown.

41. Solve and Write Add/Sub Equations
Solve. r = 2 1 5

42. Solve and Write Add/Sub Equations
Solve. r = 𝟑 𝟓 - 𝟑 𝟓 r = 2 𝟏 𝟓 - 𝟑 𝟓 𝟏𝟏 𝟓 - 𝟑 𝟓 𝟖 𝟓 1 𝟑 𝟓

43. Solve and Write Add/Sub Equations

44. Solve and Write Add/Sub Equations
Solve a = a = Check: = 34.50

45. Solve and Write Add/Sub Equations
Solve = f

46. Solve and Write Add/Sub Equations
Solve. 0.16= f = f Check: = 0.16

47. Solve and Write Add/Sub Equations
Solve. 231 = x + 45

48. Solve and Write Add/Sub Equations
Solve. 231 = x = x Check: 231 =

49. Solve and Write Add/Sub Equations
Virginia’s mother gave her marbles for her birthday. Virginia lost 13 of them. If she has 24 marbles left, write and solve a subtraction algebraic equation to find how many her mother gave her.

50. Solve and Write Add/Sub Equations
Virginia’s mother gave her marbles for her birthday. Virginia lost 13 of them. If she has 24 marbles left, write and solve a subtraction algebraic equation to find how many her mother gave her. m – 13 = m = 37

51. Solve and Write Add/Sub Equations
Zoey and her dog weighs 108 pounds. Zoey weighs 99 pounds. Write and solve an algebraic equation to find the dog’s weight.

52. Solve and Write Add/Sub Equations
Zoey and her dog weighs 108 pounds. Zoey weighs 99 pounds. Write and solve an algebraic equation to find the dog’s weight x = = -99 x = 9

53. Solve and Write Add/Sub Equations
Claudio went for a walk. While he was walking, $1.35 fell out of his pocket. When he returned home, he counted his money and had $2.55 left. Write and solve an equation to find how much money was in Claudio’s pocket when he started his walk.

54. Solve and Write Add/Sub Equations
Claudio went for a walk. While he was walking, $1.35 fell out of his pocket. When he returned home, he counted his money and had $2.55 left. Write and solve an equation to find how much money was in Claudio’s pocket when he started his walk. m – 1.35 = m = 3.90

55. Solve and Write Add/Sub Equations
Aida was hang gliding. After losing 57 feet in altitude, she was gliding at 125 feet. Write and solve an equation to find her height when she started hang gliding.

56. Solve and Write Add/Sub Equations
Aida was hang gliding. After losing 57 feet in altitude, she was gliding at 125 feet. Write and solve an equation to find her height when she started hang gliding. h – 57 = h = 182

57. Solve and Write Add/Sub Equations
How would you solve 163 – b = 71?
Elisa is explaining how to solve the equation d – 6 = 4. Find her mistake and correct it.

58. Solve and Write Add/Sub Equations
How would you solve 163 – b = 71?
Elisa is explaining how to solve the equation d – 6 = 4. Find her mistake and correct it.
She did not add 6v to both sides of the equation.

59. Solve and Write Add/Sub Equations
How would you solve 163 – b = 71?

60. Solve and Write Add/Sub Equations
How would you solve 163 – b = 71? 163 – b = 71 +b +b 163 = 71+ b

61. Solve and Write Add/Sub Equations
How would you solve 163 – b = 71? 163 – b = 71 +b +b 163 = 71+ b = b

62. Solve and Write Add/Sub Equations
Complete Mid-Chapter Check on Page 546 Bring to my desk when complete. Agenda Notes SkillsPractice 7.2/7.3.b Due Tuesday, Jan31 Mid-Chapter 7 Quiz -Tuesday, Jan 31 Retakes Thursday after school