Questions and Answers
Was it true that more than 100,000 fans attended the opening football game at The Ohio State University?
Her earnings at $16 per hour were no more than $96.
True
A savings account decreased by $50 is now less than $740.
True
A number increased by 7 is at least 45.
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More than 3400 people attended the flea market.
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Her earnings at $11 per hour were no more than $121.
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The 10-km race time of 84 minutes was at least twice as long as the winner's time.
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A savings account increased by $70 is now more than $400.
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Study Notes
Understanding Inequalities
- Attendance at events can be expressed as inequalities; for example, over 100,000 fans at The Ohio State University marked a significant turnout.
- Earnings can also be limited by inequalities; here, earning $16 per hour capped at $96 reflects the maximum hours worked being 6.
- A decrease in account balance showing that after a $50 drop, the new balance is less than $740 indicates a financial condition needing monitoring.
- Inequalities can depict conditions for growth, such as a number increasing by 7 that must be at least 45, suggesting the original number is at least 38.
- Attendance at communal events, like flea markets, can be quantified; for instance, more than 3,400 attendees signifies a popular event.
- Earnings inequality can highlight wage limits; earning $11 per hour with a maximum of $121 indicates a total of 11 hours worked.
- Race times can be expressed through inequalities; for example, an 84-minute 10-km race indicates the time was at least twice as long compared to the winner's time of a maximum of 42 minutes.
- Positive changes in savings accounts show growth; if an account increased by $70 and exceeds $400, the initial balance must have been over $330.
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Description
This quiz covers basic inequalities concepts in pre-algebra through a series of flashcards. Each card presents a real-world scenario involving inequalities, helping students understand how to translate problems into mathematical expressions. Perfect for reinforcing your understanding of inequalities!
