Expressions and Inequalities in the Real World

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CCSS.6.EE.B.8

• 5 + a = 3

• 5a = 3

• 5 - a = 3

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CCSS.6.EE.B.7

• C + b = 250

• 3b = 250

• C = 3b

• C + 3b = 250

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CCSS.HSA.CED.A.3

Justin charges $11 to mow a small lawn and $26 to mow a large lawn. He would like to earn at least $130. Write an inequality that describes the situation. Let x = # of small lawns mowed and Let y = # of large lawns mowed

• 11x + 26y ≥ 130

• 11x + 26y > 130

• 11x + 26y ≤ 130

• 11x + 26y < 130

Write the linear inequality in standard form for this situation: Mr. Bill Dauterive goes full Billdozer and is smashing pizzas and loaded breadsticks at the local Olive Garden. Problem is- he's got a budget of no more than $100. An order of breadsticks costs $5 and a pizza costs $12.

• 5x + 12y < 100

• 12x + 5y ≥ 100

• 5x + 12y ≤ 100

• 5x + 12y > 100

In order to make some extra money, Justin is mowing lawns. He charges $11 to mow a small lawn and $26 to mow a large lawn. He would like to make at least $130. Write an inequality that describes the situation. Let x = # of small lawns mowed Let y = # of large lawns mowed

• 11x + 26y ≥ 130

• 11x + 26y ≤ 130

• 11x + 26y > 130

• 11x + 26y < 130

Se Chan is selling chocolate bars and orange juice in a carnival. Chocolate bars sell for RM2.50 each, and orange juice sell for RM3.50 each. The minimum of profit that Se Chan want is RM150, write an inequality showing the number of chocolate bars, b, and the number of orange juice, j, he must sell.

• 2.50b + 3.50j ≥ 150

• 2.50m + 3.50j > 150

• 2.50b + 3.50j ≤ 150

• 2.50m + 3.50j <150

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A customer is ordering hats and T-shirts from an online store. Each hat costs $7, and each T-shirt costs $10. The customer recieves free shipping if the amount of the order is over $100. Write an inequality that represents all possible combinations of hats, x, and T-shirts, y, in an order that qualifies for free shipping.

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• 10

• 17