Expressions & Equations
Published on Mar 21, 2016
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PRESENTATION OUTLINE
7.EE.B.4: Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.
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Shopping
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Football
STUDENTS WILL: Translate verbal statements into inequalities and graph the solutions on a number line.
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An inequality is a statement using
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When we work with inequalities, we use a GRAPH to show our solution.
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Rules for Graphing
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Work as a team to create inequalities that represent each statement. Remember to solve and graph your solution.
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Statement A: Adult tickets were $15 each. Student tickets were $10 each. We bought several adult tickets and one student ticket. At most, how many adult tickets did we buy with $160.
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Statement B: Fontaine earns $10 an hour and sometimes receives additional money in tips. Today Fontaine worked for several hours and also earned $15 in tips. How many hours did Fontaine work if he earned more than $160?
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Statement C: Cheyenne has two jobs. She works the same amount of time on each job. She earns $15 per hour on one job and $10 per hour on the other job. How many hours did she spend at both jobs if she made more than $500 this week?
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Statement D: The shopper bought a shirt for $15 and a belt for $10. The shopper also bought a pair of shoes. How much did the shoes cost if it all rang up to be less than $50.
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Statement E: Dakota earned $15 per hour on her job today. She spent $10 on her lunch. Dakota must work no fewer than _____ hours to pay back her friend Mariah the $40 she owes.
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Statement F: Bryant works at a barbershop. In one day of work he will earn $10 per haircut. On each day of work he must pay a $15 chair rental fee to the owner of the barber shop. At the end of the day he earned fewer than $305, how many haircuts did he give?
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