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Lesson 2: Patterns, Equations, and Graphs CE 2015

ALG I A1 2520 Unit 3: Solving Equations

1. Which of the following is an example of an open equation? (1 point)
5x + 7 = 12
12 + (–8) = 4
25 = 5(5)
8 + 0 = 8

1.A
2.D
3.B
4.A
5.D
6.D
7.C
8.C
9. (SA) the (4,1) are an ordered pair
the format for an ordered pair is (x,y)
so 4=x and 1=y putting in these values will give us 1=3(4)+1 and as you can see this is NOT TRUE
10.(SA) c-2.50 D where C is the cost. you can pick any number for D. after you do this you can solve for the cost of C

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3 answers

  1. #1 ok
    #2-8 ¿quien sabe?

    #9 (4,1) is an ordered pair.
    no idea which equation is is supposed to fit
    It certainly does not satisfy y=3x+1

    #10 true
    #9

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  2. mrs.sue can u help me with Lesson 14: Equations and Inequalities Unit Test CE 2015
    Math 7_A Unit 5: Equations and Inequalities plz i need help plz

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  3. good

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