Math

Hi everyone, my name is Emerson. I was wondering if anybody could help me on a test. I'm stuck on some, but I think I know some others. Thank you!

1. Translate the phrase "nine more than two times a number" in to an algebraic expression.

A. 9x + 2
B. 2x + 9
C. 9x - 2
D. 2x - 9

Could it be "B"?

2. Evaluate the expression 3m - 5 when m = 7.

A. 2
B. 16
C. 21
D. 28

Could it be "B"?

3. Simplify 4x + 8y - 3x + 2 y.

A. 12x - y
B. 22x + y
C. 6x + 5y
D. x + 10y

I’m not sure about this one.

4. Factor 24p + 64.

A. 24(p + 40)
B. 12(2p + 5)
C. 8(3p + 8)
D. 3(8p + 21)

Could it be “C”?

5. m + 8 = 22

A. -30
B. 14
C. -14
D. 30

Could it be “B”?

6. W – 8 = -12

A. -20
B. -4
C. 4
D. 20

Could it be “B”?

7. 3q = 12

A. 4
B. 9
C. 15
D. 36

Could it be “A”?

8. q/6 = 24

A. 4
B. 8
C. 30
D. 144

Could it be “D”?

9. 3b – 9 = 15

A. 8
B. 6
C. 2
D. -2

Could it be “A”?

10. y/5 + 10 = -15

A. -125
B. -25
C. -5
D. -1

Could it be “A”?

11. -3(4 – a) = 6

A. -6
B. -2
C. 2
D. 6

Could it be “D”?

12. 5(x + 6) = 45

A. 15
B. 3
C. -3
D. -15

Could it be “B”?

13. Brandon is bringing bottled water to a picnic. He has 4 full cases of bottles of water, and a bag with 8 more bottles. He has a total of 104 bottles of water. Write and solve an equation to find the number of bottles in each case.

A. x/4 + 8 = 104; x = 384
B. x/4 – 8 = 104; x = 448
C. 4x + 8 = 104; x = 24
D. 4x – 8 = 104; x = 28

I’m not sure about this one.

14. Which is a solution of h > -6?

A. -10
B. -8
C. -6
D. -4

Could it be “D”?

15. z – 4 > 9

A z > -13
B z > -8
C z > 5
D z > 13

I’m not sure about this one.

16. q + 7 less than/equal to – 15

A. q less than/equal to -22
B. q less than/equal to -8
C. q less than/equal to 8
D. q less than/equal to 15

I’m not sure about this one.

17. -3y > 9

A. y < 3
B. y > 3
C. y < -3
D. y > -3

I’m not sure about this one.

18. k/5 greater than/equal to -4

A. k greater than/equal to -20
B. k less than/equal to -20
C. k greater than/equal to 20
D. k less than/equal to 20

I’m not sure about this one.

19. 4g – 8 < 20

A. g > 3
B. g < 3
C. g > 7
D. g < 7

I'm not sure about this one.

20. v/-2 + 12 less than/equal to 8

A. v greater than/equal to 8
B. v less than/equal to 8
C. v greater than/equal to -8
D. v less than/equal to -8

I’m not sure about this one.

Thanks!

  1. 👍 5
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  3. 👁 2,100
  1. The ones where you designate an answer are all correct. Give your best answer for the remainder.

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  2. #3
    4x + 8y - 3x + 2 y
    = 4x - 3x + 8y + 2y
    = x + 10y

    the others from #1 to #12 are correct

    #13
    let number of bottles in a case be x
    so you have 4x + 8 bottole
    4x+8 = 104
    4x = 96
    x = 24

    #14 , ok

    #15
    z – 4 > 9
    add 4 to both sides
    z > 13

    #16

    q + 7 ≤ – 15 , subtract 7 from both sides
    q ≤ -22

    #17
    -3y > 9 , divide by -3, so you MUST reverse the inequality sign
    y < -3

    #18
    k/5 ≥ -4 , multiply both sides by +5
    k ≥ -20

    #19
    4g – 8 < 20
    4g < 28
    g < 7

    #20
    v/-2 + 12 ≤ 8 , subtract 12
    v/-2 ≤ -4 , multiply by -2, reverse inequality sign
    v ≥ 8

    For the most part, when working with inequalities, pretend they are equations and perform the same steps, EXCEPT when multiplying or dividing by a negative, you must reverse the inequality sign.
    This is usually your last step

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  3. Thank you so much Reiny! I got 100%

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  4. thank you i got 100

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  5. Same unreal

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  6. 1B
    2B
    3D
    4C
    5B
    6B
    7A
    8D
    9A
    10A
    11D
    12B
    13C
    14B
    15C
    16D
    17A
    18C
    19A
    20D
    21A

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  7. 1.B
    2.B
    3.D
    4.C
    5.B
    6.B
    7.A
    8.D
    9.A
    10.A
    11.D
    12.B
    13.C
    14.D
    15.C
    16.D
    17.A
    18.C
    19.A
    20.D
    21.A

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    2. 👎 1
  8. @ hey number 14 is D..

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  9. Eliza! Your answers were right. I got 100% on my test! Thank you~! c:

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  10. lol unreal

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  11. 1.B
    2.B
    3.D
    4.C
    5.B
    6.B
    7.A
    8.D
    9.A
    10.A
    11.D
    12.B
    13.C
    14.D
    15.C
    16.D
    17.A
    18.C
    19.A
    20.D
    21.A (Eliza is Correct to)

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  12. Thank you got a 100%

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  13. Eliza is 100% right. Also thanks for helping me check my answers. :)

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  14. Thank you Eliza! (:

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