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Match each phrase with its variable expression.

Self Quiz : Don’t copy, just try these 5 problems. Match each phrase with its variable expression. d. 1) Twice the sum of x and 3. e. 2) Two less than the product of 3 and x. b. 3) Three times the difference of x and 2. a. First, did you box the backwards words???.

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Match each phrase with its variable expression.

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  1. Self Quiz: Don’t copy, just try these 5 problems Match each phrase with its variable expression. d 1) Twice the sum of x and 3 e 2) Two less than the product of 3 and x b 3) Three times the difference of x and 2 a First, did you box the backwards words??? 4) Twice the number x less 3 c 5) Two more than 3 times the number x

  2. Lesson 2.4 – Translating Sentences into Equations Write this TITLE down on your notes!!! Lesson 2.4 – Translating Sentences into Equations

  3. Translate the following sentences into equations. 1) Eleven more than a number t is 23. 2) Eight times a number k is equal to 56. 3) Thirteen less m equals 6. What is the difference between expressions and equations? A: Equations have equal (=) signs and expressions don’t. Objective - To translate sentences into equations. The “is” in a sentence is usually the “=” sign

  4. Translate the following sentences into equations. 1) Twice the sum of a number n and 5 equals 18. 2) The quotient of x and 2 added to 9 is equal to 13. 3) Six less than 5 times a number x is 39. 4) Forty-two equals 5 subtracted from the product of 7 and x.

  5. Define a variable and write an algebraic equation that represents the situation. 1) The number of animals at the shelter was increased by 20 and is now 185. Let n = the original number of animals n + 20 = 185

  6.  Define a variable, write an algebraic equation, and solve.  1) The cost of 5 DS games at t dollars each is $100. How much was each game? Let g = the cost of each game 5 • g = 100 g = 20 Mental Math “5 times what number will get me 100?” The cost of each game is $20.

  7. Many backward words will usually use the word “than”, so watch out for it. Define a variable, write an algebraic equation, and solve. The Sears Tower is 110 stories tall. This is 8 stories taller than the Empire State Building. How many stories is the Empire State Building? Let x = the number of stories in Empire State 110 = x + 8 Mental Math “What number plus 8 will get me 110? x = 102 Number of stories in Empire State is 102.

  8. Self Quiz: Don’t copy, just try these 5 problems Match each sentence with its variable equation. b 1) Twice the sum of 4 and x is 5. d 2) Four more than the product of 2 and x is 5 a 3) Four times the difference of x and 2 is 5. c 4) Two subtracted from the product of x and 4 is 5. e 5) The product of two and x less 4 is 5.

  9. Homework • Take out a NEW sheet of paper to start your homework. Use proper math guidelines! Name Period # Date p.68 (#16-26, skip #20, #33-38 all) 16) 16) Remember to write the original problem, then your work, then write your answer

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