2-Step Equations/Inequalities and Angle Relationships

Lawrence's father gave him 200 baseball cards. Each week, Lawrence purchases 25 cards to add to his collection.

Which inequality can be used to find w, the number of weeks after starting his collection when Lawrence will have more than 750 baseball cards in his collection?

• 200w +25 < 750

• 25w + 200 < 750

• 200w + 25 > 750

• 25w + 200 > 750

If x = -6, which inequality is true?

• -5 - 3x > 10

• -3 - 5x < -14

• 1 - 2x > 13

• 2 - x < -3

Which number line best represents the solution to the inequality 3.3x - 9 > -22.2?

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What is the solution to this inequality?

-8x + 40 > -16

• x > 7

• x < 7

• x > -3

• x < -3

Tags

CCSS.7.EE.B.3

CCSS.7.EE.B.4

Which situation best represents the following equation?

45w + 123.95 = 753.95

• Erica paid $753.95 for dance classes. She paid a $123.95 registration fee and $45 for each week she was enrolled in the classes. What is w, the number of weeks Erica was enrolled in dance classes?

• Erica paid $753.95 for dance classes. She paid a $45 registration fee and $123.95 for each week she was enrolled in the classes. What is w, the number of weeks Erica was enrolled in dance classes?

• Erica and her sister paid $753.95 for dance classes. Erica paid $123.95 for each week she was enrolled in the classes, and her sister paid $45 for each week she was enrolled in the classes. What is w, the number of weeks Erica and her sister were enrolled in dance classes?

• Erica paid $753.95 for dance classes. She paid $123.95 each week she was enrolled in the classes after using a coupon that gave her $45 off the price per week. What is w, the number of weeks Erica was enrolled in dance classes?

The model represents an equation. What is the solution for this equation?

• x = 3

• x = 15

• x = 5

• x = 1

Tags

CCSS.7.EE.A.1

CCSS.7.EE.B.3

CCSS.7.EE.B.4

What is the solution to this equation?

30.16 = 17.56 + 5x

• 6.032

• 3.512

• 12.6

• 2.52

• 1

• 7

• -5

• -1

• 25

• 20

• 10

• 28

An isosceles triangle has base angles that each measure 42°. Which equation can be used to find z, the measure of the third angle of this isosceles triangle?

• 84 + 2z = 180

• 84 + z = 180

• 42 + 2z = 180

• 42 + z = 180