Keystone Equations Inequalities

Keystone Equations Inequalities

9th Grade

12 Qs

quiz-placeholder

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Keystone Equations Inequalities

Keystone Equations Inequalities

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSA.REI.D.12, 7.EE.B.4B, HSF.LE.B.5

Standards-aligned

Created by

Anthony Clark

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the solution set to the inequality: -3 < 2x - 1 < 7

-2 < x < 4

-1 < x < 3

-1 < x < 4

-1 < x < 4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A company makes boxes of crackers that should weigh 213g. A quality control inspector randomly selects boxes to weigh.  Any box that varies from the weight by more than 5g is sent back. What is an equation that shows the range of allowable weights for a box of crackers and what is the range?

|w - 213| ≤ 5,         208 ≤ w ≤ 218

|w - 213| ≤ 5,                   0 ≤ w ≤ 10

|w - 5| ≤ 213,         208 ≤ w ≤ 218

|w - 5| ≤ 213,                   0 ≤ w ≤ 10

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which point below is NOT part of the solution set?

(0, 0)

(-10, 20)

(3, 5)

(0, -2)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which system of inequalities matches the graph?

y > 2x - 4
y < 2

y < 2x - 4
y < 2

y > 2x - 4
<  2 

y < 2x - 4
<   -2

Tags

CCSS.HSA.REI.D.12

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A T-shirt company has a goal to earn a monthly profit of more than $3,500. The company charges $20 per T-shirt. The company has $1,500 in monthly costs. The inequality 20x - 1,500 > 3, 500 models this situation. Which BEST describes the meaning of x in the inequality?

the profit made from the sale of 20 T-shirts

the profit made from 1 month of T-shirt sales

the number of T-shirts that need to be sold for the company to meet its goal

the number of T-shirts that need to be sold for the company to recover its monthly costs

Tags

CCSS.7.EE.B.4B

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Write the system of inequalities
Carlos works at a movie theater selling tickets. The theater has 300 seats and charges $7.50 for adults and $5.50 for children. The theater expects to make at least $2000 for each showing

x+y≤300
7.5x+5.5y≥2000

x+y<300
7.5x+5.5y≥2000

x+y≤300
7.5x+5.5y≤2000

x+y>2000
7.5x+5.5y≤300

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An inequality is shown below.


5x - 6 < 4 + 6x


Which is a graph of the solution set of the inequality?

Media Image
Media Image
Media Image
Media Image

Tags

CCSS.7.EE.B.4B

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