1. Inequalities Sprint #1
You will have 5 minutes to complete as many problems as possible.
As soon as the bomb goes off, submit!!!
Winner= Person with the most correct in the shortest amount of time.
1st Place = +1 EC, $100 Kudos, Candy
2nd Place = $75 Kudos & Candy
3rd Place = $50 Kudos & Candy

2. Engage NY Pink Packet page 14
Lesson 13: inequalities
Engage NY
Pink Packet page 14

3. Tarik is trying to save $265. 49 to buy a new tablet
Tarik is trying to save $ to buy a new tablet. Right now he has $40 and can save $38 a week from his allowance.
Pink Packet 14

4. When will Tarik have enough money to buy the tablet?
Write and evaluate an expression to represent the amount of money saved after each week. Week 2 has been done as an example.
2 weeks =
3 weeks =
4 weeks =
5 weeks =
6 weeks =
7 weeks =
8 weeks =
(2) = = 116
When will Tarik have enough money to buy the tablet?
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5. When will Tarik have enough money to buy the tablet?
Answer Key:
2 weeks = 116
3 weeks = 154
4 weeks = 192
5 weeks = 230
6 weeks = 268
7 weeks = 306
8 weeks = 344
When will Tarik have enough money to buy the tablet?
From 6 weeks and onward.
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6. Write an inequality that will generalize the problem…
2 weeks = 116
3 weeks = 154
4 weeks = 192
5 weeks = 230
6 weeks = 268
7 weeks = 306
8 weeks = 344
Let “w” represents the amount
of weeks it will take to
save the money.
38w + 40 >
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7. Why is it possible to have more than one solution?
It is possible because the minimum amount of money Tarik needs to buy the tablet is $ He can save more money than that, but he cannot have less than that amount. As more time passes, he will have saved more money. Therefore, any amount of time from 6 weeks onward will ensure he has enough money to purchase the tablet.
So the minimum amount of money Tarik needs is $265.49, but he could have more but certainly not less.
What inequality would demonstrate this?
Greater than or equal to
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8. Interpret the meaning of the 38 and 40 in the inequality
38w + 40 >
The 38 represents the amount of money saved each week. As the weeks increase, the amount of money increases. The $40 was the initial amount of money saved, not the amount saved every week.
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9. Exercise 1
Connor went to the county fair with a $22.50 in his pocket. He bought a hot dog and drink for $3.75 and then wanted to spend the rest of his money on ride tickets which cost $1.25 each.
A) Write an inequality to represent the total spent where “r” is the number of tickets purchased.
1.25r < 22.50
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10. Connor will have enough money.
b) Connor wants to use this inequality to determine whether he can purchase 10 tickets. Use substitution to show whether or not he will have enough money.
1.25r < 22.50
1.25 (10) < 22.50
< 22.50
16.25 < 22.50
Connor will have enough money.
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11. c) What is the total maximum number of tickets he can buy based upon the given information.
Use the 7 steps of algebra to solve this problem.
The maximum number of tickets Connor can buy is 15 tickets.
1.25r < 22.50
1.25r
r <
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12. Let x represents the weight of one gift
Exercise 2
On a particular airline, checked bags can weigh no more than 50 pounds. Sally packed 32 pounds of clothes and five identical gifts in a suitcase that weigh 8 pounds.
Write an inequality to represent this situation.
5x < 50
Let x represents the weight of one gift
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13. Solve the inequality with the 7 steps of algebra
5x < 50
5x + 40 < 50
5x < 10
x < 2
Each of the 5 gifts can weigh 2 pounds or less.
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14. Homework pages 16-19
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