math assignment

show work
HOMEWORK
ATTACHED FILE(S)
©Curriculum Associates, LLC Copying is not permitted. 215Lesson 20 Solve Inequalities
Name:Solve Inequalities
Lesson 20
Prerequisite: Solve Equations
Study the example problem showing how to solve an
equation. Then solve problems 1–7.
1What does b represent in the bar model?

2What does each part of the bar model represent?

3Explain how the model shows that 7b 5 91

4What operation will you use to solve the equation
7b 5 91? Solve the equation to find the number of bulbs,
and justify each step you take to solve the equation
Show your work.
Solution:
Example
Taryn planted 91 tulip bulbs in 7 rowsShe planted the
same number of bulbs in each rowHow many bulbs
did she plant in each row?
Create a bar model to represent the 7 rows and the total
number of bulbs that Taryn planted
91
bb b b b b b
©Curriculum Associates, LLC Copying is not permitted.216 Lesson 20 Solve Inequalities
Solve.
5Milo and Audrey sold tickets to the school concert
Milo sold 14 fewer tickets than AudreyIf Milo sold
32 tickets, how many tickets did Audrey sell?
Show your work.
Solution:
6Carmen buys 4 daisies and some roses to make a
flower arrangementThe number of daisies is 1 ·· 3 of the
number of roses that she buysHow many roses does
she buy?
Show your work.
Solution:
7Write a multiplication equation and a subtraction
equation that both involve a fraction and have the
same solutionSolve your equations to show that
the solutions are the same
©Curriculum Associates, LLC Copying is not permitted. 217Lesson 20 Solve Inequalities
Name:
Lesson 20
Write and Solve an Inequality
Study the example problem showing how to write and solve an
inequality for a real-world problem. Then solve problems 1–9.
1Why is the graph in the example shaded to the left?

2Is 2$10 a solution? Substitute 210 into the inequality
in the example to check

3Name an amount that is NOT a solution to the
inequalityExplain how you know

4Suppose the bank sent MrGomez a notice whenever
the amount in his account dropped to $15 or lessHow
would the graph in the example change?

Example
MrGomez gets a notice from the bank when the amount
in his checking account drops below $20For what
amounts will MrGomez receive a notice from the bank?
Use words and symbols to represent the situationLet x
represent the amount in MrGomez’s accountWhen x is
less than $20, the bank will send a notice
x , 20
Graph the inequality to show all of the solutionsUse an
open circle shows that 20 is NOT a solution
025210215220225 5 10 15 20 25
Vocabulary
inequality a statement
that contains the symbol
,, ., #, or $For any
inequality, there are
many possible solutions
These are inequalities
x , 5
x . 22
x # 15
x $ 0
©Curriculum Associates, LLC Copying is not permitted.218 Lesson 20 Solve Inequalities
Solve.
5Write the inequality shown on each graph
a.
222324 21 0 1
b.
210 10 20 30 40230 220250 240 0 50
6The children at Lincoln School go outside for
recess if the temperature is 3°C or higherFor
what temperatures will the students go
outside? Write an inequality to represent this
situationThen graph the solution

7If your score on a computer game is less than 0, you
lose your next turnFor what scores will you lose your
turn? Write an inequality to represent this situation
Then graph the solution

8Write a real-world situation for this inequality: x $ 9

9Explain how an equation and an inequality are
differentGive an example of each

2 4 5 6 70 122 21 3 8
24 0 2 4 628 26212 210 22 8

©Curriculum Associates, LLC Copying is not permitted. 219Lesson 20 Solve Inequalities
Name:
Lesson 20
More Inequalities
Study the example problem showing how to write and
solve an inequality. Then solve problems 1–9.
1Leigh is 40 inches tallCan she ride on the roller coaster?

2Brennon is 38 inches tallCan he ride on the roller
coaster? Use the graph to explain your answer

3Joy wrote the inequality 40 # x to represent the
situationIs her inequality correct?

4Suppose this graph represents a problem about the
height of people riding the roller coasterHow would
the situation have changed?
10 30 40 50 60210 0230 220 20 70

Example
You need to be at least 40 inches tall to ride on the roller
coaster at the amusement parkWhat are some possible
heights for riders? Write an inequality to represent the
heights, and graph the solution on a number line
Use symbols to represent the situationLet x be the
possible heights in inches for riders
x $ 40
Graph the inequality to show all of the solutions
10 30 40 50 60210 0230 220 20 70
©Curriculum Associates, LLC Copying is not permitted.220 Lesson 20 Solve Inequalities
Solve.
Use this situation for problems 5–6.
You must spend at least $10 at the grocery store to get a
free greeting card
5Write an inequality to represent the amount you need
to spend to get a free greeting cardThen graph the
solution on the number line

6If you spend $9 50, will you get a free greeting card?
Use the graph to explain how you know

7Zarina is scuba divingShe will not dive below
230 meters relative to the surface of the waterWrite
an inequality that represents this situationIs 220 a
solution to the inequality? Explain how you know

8Write an inequality that has the solution shown
on the graphThen write a real-world situation for
the inequality
5 7 8 9 103 41 2 6 11

9Markim looks at the graph below and says that 21 is
the only possible negative solutionDo you agree or
disagree? Explain
0 2 3 4 522 2124 23 1 6

12 16 18 20 228 104 6 14 24
©Curriculum Associates, LLC Copying is not permitted. 221Lesson 20 Solve Inequalities
Name:
Lesson 20
Solve Inequalities
Solve the problems.
3The graph shows information about the low
temperature in a particular city in degrees Celsius each
day during one week in JanuaryWrite an inequality
for this situationThen write in words what the graph
shows about the temperature readings
26 24 22 0 6 8 1028210 2 4

2Samuel wants to eat at least 15 grams of protein each
dayLet x represent the amount of protein he should
eat each day to meet his goalWhich inequality
represents this situation?
A x , 15 C x # 15
B x . 15 D x $ 15
Karli chose B as the correct answerHow did she get
that answer?
1Write an inequality for each graph
a.

b.
21 0 12223 2

What does the
direction of the
arrow on the shaded
line tell you about
the inequality?
Would a graph for
this situation have
an open circle or a
closed circle?
What are some
words that describe
a situation in which
the shaded line on
the graph points
left?
10 30 40 50 60210 0230 220 20 70
©Curriculum Associates, LLC Copying is not permitted.222 Lesson 20 Solve Inequalities
6Consider the inequality x . 20 75Tell whether each
statement is True or False
a. 20 75 is a solution to
the inequalityu True u False
b. There are many solutions
to this inequality u True u False
c. All of the solutions to the
inequality are negativeu True u False
d. The inequality 20 75 , x
is equivalent to the given
inequalityu True u False
e. 24 5 is a solution to the
inequalityu True u False
Solve.
4Kalista practices the piano for at least 8 hours each
weekWrite an inequality for this situationThen graph
the solution on the number line
5Which of these values is a solution
to the inequality x 2 1 $ 6?
73 1 ·· 22 510
Show your work.
Solution:
Does a given value
for x make the
inequality true or
false?
How do you know
whether a given
value is a solution to
the inequality?
Does “at least”
include 8 as a
solution?
2 4 6 8 14 16 18022 10 12

Paper Assignments
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional and Experienced Academic Writers

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

Admissions

Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

Reviews

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

Reviews

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.