Topic Details (Notes format)

How to Solve Systems of Inequalities Word Problems

Subject: Mathematics

Book: Maths Mastery

Many real-world constraints call for multiple inequalities, like “Work hours ≤ 40, wage/hour ≥ ₹100, and total weekly pay ≥ ₹3,500.” Represent each constraint as an inequality, then find the feasible region if you have two or more variables. For instance, x≥100, y≤40, and xy≥3,500 in some context. Graphing or systematically analyzing these inequalities reveals possible solutions. Industrial engineering, resource allocation, or scheduling tasks rely heavily on systems of inequalities for optimization. Mastering them fosters an ability to handle advanced planning with multiple constraints or objectives.

Practice Questions

A sum of money triples itself in 12 years at simple interest. What is the rate of interest per annum?

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The LCM of two numbers is 60, and their HCF is 5. If one of the numbers is 20, what is the other number?

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The sum of the reciprocals of two numbers is 1/4. If one number is 12, what is the other?

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If the sum of the squares of two consecutive positive integers is 365, what are the integers?

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The perimeter of a rectangle is 40 cm, and its length is 12 cm. What is its width?

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If a cone has a base radius of 3 cm and height of 4 cm, what is its slant height?

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If sin(θ) = 3/5 and θ is an acute angle, what is tan(θ)?

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The area of an equilateral triangle with side length 6 cm is:

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What is the value of x if log(x) + log(4) = log(32)?

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If x^2 - 6x + 9 = 0, what is the value of x?

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