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7th Math Unit 3 Day 15 -2/14

Last updated over 1 year ago
7 questions
Objective and Summary:
SWBAT model word problems with inequalities and graph solutions on a number line
Text for Notebook Model:

Mancini Motors are trying to sell most cars on their lot. They started with 525 cars and estimate they can sell 50 cars per week.
How many weeks will it take to have less than 75 cars left?
1

Skill and Drill 1--Solve the inequality then graph the solutions on the number line.
List out some solutions or values of y.

2y\geq8

**You MUST SYW**. Be patient, this will be graded by hand.

CFS:
#1: Accurately solves and interprets inequality
#2: Accurately graphs solution set on number line

1

Skill and Drill 2--Solve the inequality then graph the solutions on the number line.
List out some solutions or values of x.

-4-2x<2

**You MUST SYW for the graph**

CFS:
#1: Accurately solves and interprets inequality
#2: Accurately graphs solution set on number line

1

Hamilton 2--Ms. Zangrilli is promoting her new play. She starts with 300 tickets and believes that she can sell about 12 tickets per day. Her goal is to have less than 40 unsold tickets.
How many days of promoting will it take for Ms. Zangrilli to reach her goal?

CFS:
#1: Defines appropriate variable
#2: Accurately writes and solves inequality
#3: Accurately graphs solution set on number line

1

Meters--Parking in LA is quite expensive. Mr. Espinoza's family parked their car in a garage that charges $8 per hour. If they started with $65 and want to have at least $30 left over for when they pay for dinner, what is the longest amount of time they can stay in the parking garage?

CFS:
#1: Defines appropriate variable
#2: Accurately writes and solves inequality
#3: Accurately graphs solution set on number line

1

Homeroom Party—Ms. Hines gave the Marshalls a budget of $35 to buy snacks for their homeroom party. Camila is practical and points out that they need to buy plates and napkins for $6. Elizabeth then proposes that they spend the rest of the money on Takis.

If giant bags of Takis are $2. 50 each, what is the maximum number that the Marshalls can buy? Write and solve an inequality.

1

Write your own word problem like in our examples. You can make it about any kind of scenario, but usually relating it to money is easiest.

Then create your own inequality, and if you have time you can solve your own story!

4

Solve the inequality and graph the solution set on the number line.
Make sure to show all work for credit.

-40x-80>160

**You MUST SYW in formative**

CFS:
#1: Accurately solves inequality
#2: Accurately graphs solution set on number line

Awesome work!

1) Find the new starred skills about inequalities
2) Work ahead on other challenge skills to push yourself to your MAP goals :)