Problem Solving with Simple Inequalities
Presentation
•
Mathematics
•
8th Grade
•
Hard
James Gonzalez
FREE Resource
5 Slides • 4 Questions
1
Solving Real-World Problems
with Inequalities
Tuesday, September 10, 2024
2
DO NOW!
(Stand Up, Hand up, Pair Up)
You want to buy new sneakers for $150.
You’ve saved $50 already and plan to make
money by washing cars. You charge $10 per
car.
How many cars do you need to wash to afford the sneakers?”
How can you write as an inequality?
3
OBJECTIVE
I will solve word problems leading to
inequalities, graph the solution set, and interpret it in the context of a real-world solution
4
Open Ended
What is the topic of today's lesson??
5
VOCABULARY
Inequality
Rational
Numbers
Greater
Than (>)
Less
Than (<)
Greater
Than or
Equal To
(≥)
Less
Than or
Equal To
(≤)
6
Multiple Choice
Which one of these is NOT one of our vocabulary words for today?
Inequality
Coefficient
Rational Numbers
Less than
7
Multiple Choice
Justin is trying to save $475.63 to buy a new cell phone.
He already has $125 and will save $27 a week by walking dogs.
Choose the inequality that represents the situation.
27x−125>475.63
27x+125<475.63
27x−125<475.63
27x+125>475.63
8
Open Ended
Tyler started his own babysitting business: Ty Cares. He charges a fee of $20 per hour for one child, and an added flat fee of $30 for each additional child.
He wants to make at least $250 this week babysitting for a family of three. His sister told him that he will need to work at least 12 hours to make $250 this week, but Tyler disagrees.
To determine whether or not Tyler’s sister is correct, find the minimum number of hours Tyler must work.
9
Today's Assignments
Complete Delta Math Assignment
Complete IXL Recommended
Solving Real-World Problems
with Inequalities
Tuesday, September 10, 2024
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