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Mathematics 15 Online
OpenStudy (anonymous):

When Do we use inequalities in real life

OpenStudy (solomonzelman):

EXAMPLE\( : \) Let's say I am a student, and I make 25 dollars per hour for tutoring math. I need to make at least 511 dollars to buy a DVD player. How many hours should I work to earn this? (let's call number of hours - t) 511<25⋅t

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