inequality

  1. math_celebrity

    Tyrese’s sister is 41 inches tall. A ride at the amusement park states that riders must be at least

    Tyrese’s sister is 41 inches tall. A ride at the amusement park states that riders must be at least 52 inches tall to ride. Which statements describe how much taller Tyrese’s sister must be to ride? Let h be the required additional height. The phrase at least means an inequality, using the >=...
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    Dawn has less than $60. She wants to buy 3 sweaters. What price of sweaters can she afford if all th

    Dawn has less than $60. She wants to buy 3 sweaters. What price of sweaters can she afford if all the sweaters are the same price? Let s be the price of each sweater. Write this as an inequality. The phrase less than means an inequality, so we have the following inequality: 3s < 60 To solve...
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    Isabel earns $7.50 per hour on the weekends. Write and solve an inequality to find how many hours sh

    Isabel earns $7.50 per hour on the weekends. Write and solve an inequality to find how many hours she needs to work to earn at least $120. A few things to note: Earnings = Rate * time Let h be the number of hours worked The phrase at least means greater than or equal to, so we have the...
  4. math_celebrity

    Amanda runs each lap in 4 minutes. She will run less than 44 minutes today. What are the possible nu

    Amanda runs each lap in 4 minutes. She will run less than 44 minutes today. What are the possible number of laps she will run today? Notes for this problem: Let laps be l. Lap time = Time per lap * number of laps (l) Less than means we have an inequality using the < sign We have the...
  5. math_celebrity

    Yolanda wants to rent a boat and spend less than $41. The boat costs $8 per hour, and Yolanda has a

    Yolanda wants to rent a boat and spend less than $41. The boat costs $8 per hour, and Yolanda has a discount coupon for $7 off. What are the possible numbers of hours Yolanda could rent the boat? A few things to build this problem: Discount subtracts from our total Cost = Hourly rate * hours...
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    A number m is no less than -8 and fewer than 9.

    A number m is no less than -8 and fewer than 9. No less than means greater than or equal to: m >= -8 Fewer than 9 means less than 9: m < 9 Combine these two inequalities to get -8 <= m < 9
  7. math_celebrity

    Barbra is buying plants for her garden. She notes that potato plants cost $3 each and corn plants co

    Barbra is buying plants for her garden. She notes that potato plants cost $3 each and corn plants cost $4 each. If she plans to spend at least $20 and purchase less than 15 plants in total, create a system of equations or inequalities that model the situation. Define the variables you use...
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    Maggie is shopping for her friend's party. She has a budget of $40 to spend. She needs to get a bann

    Maggie is shopping for her friend's party. She has a budget of $40 to spend. She needs to get a banner for $25 and candy necklaces that cost $1.25 each. Write an inequality for the budget. Let n be the necklaces. Since Maggie can spend up to $40, we have the following inequality: 1.25n + 25...
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    you must be 65 or older to join inequality

    you must be 65 or older to join inequality Let a be the age. 65 or older means greater than or equal to 65: a >=65
  10. math_celebrity

    Lisa wants to rent a boat and spend less than $52. The boat costs $7 per hour, and Lisa has a discou

    Lisa wants to rent a boat and spend less than $52. The boat costs $7 per hour, and Lisa has a discount coupon for $4 off. What are the possible numbers of hours Lisa could rent the boat? Calculate discounted cost: Discounted cost = Full Cost - Coupon Discounted cost = 52 - 7 Discounted cost =...
  11. math_celebrity

    kim wants to buy candy for 4 dollars a pound. if she wants to spend less than 20 dollars, how many b

    kim wants to buy candy for 4 dollars a pound. if she wants to spend less than 20 dollars, how many bags can she buy Since cost = price * quantity, we have the following inequality with b as the number of bags: 4b < 20 To solve this inequality for b, we type it in our search engine and we get...
  12. math_celebrity

    Karen bought a bucket of popcorn at the movies for $5. She also bought some candy for $2 each. Karen

    Karen bought a bucket of popcorn at the movies for $5. She also bought some candy for $2 each. Karen has to spend less than $15 on the popcorn and candy. Which inequality can be used to find c, the number of candies that Karen could have bought? Since the candy cost is the product of price and...
  13. math_celebrity

    jane has 55$ to spend at cedar point. the admission price is 42$ and each soda is 4.25. write an ine

    jane has 55$ to spend at cedar point. the admission price is 42$ and each soda is 4.25. write an inequality to show how many sodas he can buy. Let s be the number of sodas. Cost for the day is: Price per soda * s + Admission Price 4.25s + 42 We're told that Jane has 55, which means Jane...
  14. math_celebrity

    the square of the sum of x and y is less than 20

    the square of the sum of x and y is less than 20 The sum of x and y means we add y to x: x + y the square of the sum of x and y means we raise the term x + y to the 2nd power: (x + y)^2 The phrase is less than means an inequality, so we write this as follows: (x + y)^2 < 20
  15. math_celebrity

    a baseball park charges $4.50 per admission ticket. the park has already sold 42 tickets. how many m

    a baseball park charges $4.50 per admission ticket. the park has already sold 42 tickets. how many more tickets would they need to sell to earn at least $441? Let the number of tickets above 42 be t. A few things to note on this question: The phrase at least means greater than or equal to...
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    two thirds of a number is no more than -10

    two thirds of a number is no more than -10 The phrase a number means an arbitrary variable, let's call it x: x Two thirds of a number mean we multiply x by 2/3: 2x/3 The phrase no more than -10 means less than or equal to -10, so we have an inequality: 2x/3 <= -10
  17. math_celebrity

    An elevator can hold less than 2700 pounds of extra weight. If an average person weighs 150 pounds,

    An elevator can hold less than 2700 pounds of extra weight. If an average person weighs 150 pounds, what is the maximum number of people (p) that can be on the elevator at one time? Total weight = average weight per person * Number of people Total weight = 150p We know from the problem that...
  18. math_celebrity

    The base of a triangle with a height of 7 units is represented by the formula b=2/7A. The base of th

    The base of a triangle with a height of 7 units is represented by the formula b=2/7A. The base of the triangle is less than 10 units. Write and solve an inequality that represents the possible area A of the triangle We're given: b=2/7A We're also told that b is less than 10. So we have: 2/7A <...
  19. math_celebrity

    Ryan buys candy that costs $4 per pound. He will buy at least 12 pounds of candy. What are the possi

    Ryan buys candy that costs $4 per pound. He will buy at least 12 pounds of candy. What are the possible amounts he will spend on candy? Clue for you: the phrase at least means an inequality. Let s be the spend on candy. Cost = Price * quantity Cost = 4 * 12 Cost = 48 The phrase at least...
  20. math_celebrity

    kira will spend less than 27 on gifts. so far, she has spent 12$. what are the possible additional a

    kira will spend less than 27 on gifts. so far, she has spent 12$. what are the possible additional amounts she will spend? The key word in this problem is less than. So we know this is an inequality. Let s be Kira's possible spend. We have: s + 12 < 27 To solve for s in this inequality, we...
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