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Biblioteka

RETAKE Test for Chapter 4 Inequalities

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Posljednje ažuriranje almost 5 years ago
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Math 7 – Chapter 4 Test (Inequalities)

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Targeted Skill: Writing/Graphing inequalities

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Targeted Skill: Solving inequalities using addition or subtraction

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Targeted Skill: Solving Inequalities using multiplication or division

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Pitanje 1
1.

Write your name on the Rubric.

Pitanje 2
2.

Write an inequality for the graph.

Pitanje 3
3.

Write an inequality for the graph.

Pitanje 4
4.

Write the word sentence as an inequality.

A number q plus 7 is a maximum value of 45.

Pitanje 5
5.

Write the word sentence as an inequality.

A number x divided by -1 is at least -4

Pitanje 6
6.

A freezer is set to turn on and start cooling if the temperature rises above −10° Celsius. The cooling turns off when the freezer has reached a temperature of −16° Celsius.

a. Write an inequalities for when it will turn on.

Use t for temperature.

Pitanje 7
7.

A freezer is set to turn on and start cooling if the temperature rises above −10° Celsius. The cooling turns off when the freezer has reached a temperature of −16° Celsius.

b. Write an inequality for when it will turn off.

Use t for temperature.

Pitanje 8
8.

A freezer is set to turn on and start cooling if the temperature rises above −10° Celsius. The cooling turns off when the freezer has reached a temperature of −16° Celsius.

c. Give an example value at which the cooling would turn on.

Pitanje 9
9.

A freezer is set to turn on and start cooling if the temperature rises above −10° Celsius. The cooling turns off when the freezer has reached a temperature of −16° Celsius.

d. A sample value at which the cooling would be off.

Pitanje 10
10.

Solve the inequality. Graph the solution.

t - 3 > 7

Pitanje 11
11.

Solve the inequality. Graph the solution.

7 < 8 + b

The answer to this question is b > -1 (you do not get marks for this)

Show your method to get marks and remember to graph the solution.

Pitanje 12
12.

The possible values of x are given by

What is the greatest possible value of 7x?

Explain your reasoning.

Pitanje 13
13.

Solve the inequality. Graph the solution.

6Y>8

Pitanje 14
14.

Solve the inequality. Graph the solution.

Pitanje 15
15.

Solve the inequality.

The answer to this question is

(you do not get marks for this)

Show your method to get marks.

Pitanje 16
16.

A music teacher can spend up to $150 for new books. It cost $12 per book.

How many books can she buy?

Is this is a minimum or a maximum amount?

Explain your reasoning.

Pitanje 17
17.

Solve the inequality.

Pitanje 18
18.

Solve the inequality.

Pitanje 19
19.

Solve the inequality.

The answer to this question is

22>t

(you do not get marks for this)

Show your method to get marks.

Pitanje 20
20.

An orca whale has eaten 75 pounds of fish today. A bucket holds 15 pounds of fish. It needs to eat at least 135 pounds of fish each day.

Write and solve an inequality that represents how many more buckets of fish the whale needs to eat.

These are two questions in one, I need to see both things. Separate your answers with a comma and space.

For example.

inequality, answer

x+5<15, x<10