Integrated Math C HW 7.4 IA Review Name: Date: Directions: Identify the terms that match the given definition/examples. 1) Term Definition Example -x and 4x or 2 2 x and 3x 2 Terms that have the same variable parts a term that has a fixed number but no variable the 2 in 3x 2 the parts of an expression that are added (subtracted) together the number part of a term that is multiplied by a variable the circled parts in 3x 2 a letter used to represent one or more numbers Addition, subtraction, multiplication, and division A mathematical phrase that combines operations, numbers, and/or variables 3x 2 Directions: Solve each problem. Box your answer. 25.24 0.004 3) x 3 2 3 2 Two expressions that have the same value 2) the 3 in 3x (5 j 8 z)3 4) Convert to scientific notation: 5) 3 7 1 5 8 2 34,210,000,000 Directions: Translate each written expression into an algebraic expression. Then solve the equation for the unknown value. Don’t forget to define your variable. 6) Fourteen less than five times a number is three times the number. Equation: _______________________ Solve: 7) Twelve more than seven times a number equals the number less six. Equation: _______________________ Solve: Use the Solve – Explain – Justify Table to solve an equation 8) Solve Explain Justify Explain Justify 3x – 32 = –7x + 28 9) Solve t – 27 = 4t *Multiplicative Identity Property *Additive Identity Property *Multiplicative Inverse Property * Algebraic definition of subtraction *Additive Inverse Property (AKA Property of Opposites) *Distributive Property *Multiplication Property of Equality *Division Property of Equality *Addition Property of Equality *Subtraction Property of Equality 10) MUSIC Yohannes has 45 CDs in his collection, and Edmund has 61. If Yohannes buys 4 new CDs each month and Edmund buys 2 new CDs each month, after how many months will Yohannes and Edmund have the same number of CDs? *Hint: Yohannes: 45 + _____ Edmund: 61 + ______ STANDARDIZED TEST PREP It’s worth the practice. “Don’t believe me, just watch!”