Chapter 9 JEOPARDY

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Inequalites

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Equations

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WordProblems

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Backtracking

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CumulativeReview

Graph the inequality on a number line.

N > 12

Your graph should have an open circle on 12 and an arrow pointing to the

right of 12.

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Graph the inequality on a number line.

24 > n

Your number line should have a solid circle on 24 and an arrow pointing to

the left of 24.

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Is 5 a possible solution to the following inequality?

Explain.

11 – b > 4

Yes. 11-5 = 6 which is greater than 4.

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Is the following inequality always, sometimes or never

true. Explain.

56>7b

Sometimes true: It’s true when b=7, but false when b=8

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Write the inequality that illustrates the following:Kelly smiles at least 15

times per day.

s > 15

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Topic 2 $100

Explain why 5 + p = 5 is sometimes true

This is only true when p=0 but is false when p=1.

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Topic 2 $200

Is the equation below always, sometimes or never true?

Explain how you know.

This is always true because of the distributive property.

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Topic 2 $300

Is the equation always, sometimes or never true

and why?n + 5 = n - 5

Never true. A number plus 5 will always be greater than that same

number minus 5.

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Is the equation below true or false. Explain.

(12 + 4) x 2 = 12 + 4 x 2

False(12 + 4) x 2 = 12 + 4 x 2

16 x 2 12 + 8 32 does not equal 20

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Mel has a babysitting business. She charges $12 for the first hour and $7 for each additional hour.She worked this weekend and earned $40.

a)Write an equation you could solve to find the number of hours, h, she worked.

b)Use backtracking to solve your equation. How many hours did she work?

a) 12 + 7n = 40b) Show flowchart: n =4 She worked 5 hours.

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Chelsea has n pets. Lydia has two more than three times the number of pets Chelsea has.

Using n for your variable, write an algebraic expression to

represent the number of pets Lydia has.

3n + 2

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Kevin is in n clubs. Ryan is in one more than twice the

number of clubs Kevin is in. Using n for your variable, write

an algebraic expression to represent the number of clubs

Ryan is in.

1 + 2n

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Mrs. McCormick owns n costumes. Mrs. Gontarz owns five more than four times the number of costumes Mrs. McCormick owns. a) Using c for your variable, write an algebraic expression to represent the number of costumes Ms. Gontarz owns.

b) If Ms. Gontarz owns 29 costumes, how many costumes does Mrs. McCormick own? Use backtracking to find your answer.

a) 5 + 4cb) Show flowchart: Mrs. McCormick

owns 6 costumes.

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Friends of Rachel set a goal to raise at least $80 for charity. They have raised $30 so far.

a) Write an inequality to represent the amount of money, m, the club members still need to raise.

b) Graph the inequality on a number line.

a) m > 50 b) Your graph should have a solid circle on 50

and an arrow pointing to the right of 50.

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Topic 3 $500

a) 4.5 + 0.75r = 10 b) 7.33; Russ can buy 7 tickets

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Solve the equation by creating a flowchart and backtracking.

6m + 11= 35

The solution is 4. x6 +11 4 -> 24 -> 35 /6 -11

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Solve the equation by creating a flowchart and backtracking.

14 + 8n = 102

The solution is 11. x8 +1 11-> 88 -> 102 /8 -1

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Topic 4 $300

Solve the equation by creating a flowchart and

backtracking.

The solution is 5. x6 +20 /5 5 -> 30 -> 50 -> 10 /6 -20 x5

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Topic 4 $400

Solve the equation by creating a flowchart and backtracking.

The solution is 5.5 -1 x5 /3 5.5 -> 4.5 -> 22.5 -> 7.5 +1 /5 x3

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Topic 4 $500

The solution is 5. X9 +4 /7 x10 -25 5 -> 45 -> 49 -> 7 -> 70 -> 45 /9 -4 x7 /10 +25

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Would you be happy if you received the following score on

a test?

100 – 50 ÷ 5 x 5

100 – 50 ÷ 5 x 5

100 - 10 x 5

100-50

50

NO!!!

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Solve. Show your work.

96

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Solve. Show your work.

20/4 = 5

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Find the rule for the input/output table.

7n – 4 = 7

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Find the rule for the input/output table.

n ÷ 2 + 4 = t

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