math

posted by .

2. Simplify. Please be sure to show all of your work.
-3(-9) – |-5 – 3


3. Simplify. Please show all of your work
9c^3+7c-(3c^3-12+c)

4. Solve 4x- 3(5x-8) =23-9(x+2) . Please show all of your work


5. Solve the following equation for z. Please show all of your work.
x=1/25(22z-9w)


6. Solve -14x -7(4-7) <(2x-15) . Write your solution using set builder notation. Please show all of your work
7.
Solve. Please show all of your work.
During one year, the Hills' real estate bill included $413 for miscellaneous services. Of this amount, 8% went to the local homeless shelter. How much money did the homeless shelter receive?

8. Solve. Please show all of your work.
Find the length and width of a rectangular lot with a perimeter of 108 meters if the length is 8 meters more than the width.

9. 9. Solve. Please show the algebraic inequality you used and show all of your work.
The Lido Company rents copy machines for a monthly charge of $300 + 10 cents per copy. The Lumsden Company rents copy machines for a monthly charge of $500 + 3 cents per copy. How many copies make the Lido Company more expensive than the Lumsden Company?

  • math -

    Jiskha is NOT a dumping ground for homework. We help students, but we do not do the work for them. If you continue posting a lot of questions with no work shown, you may be banned from posting here.

    Also see Writeacher's message to you earlier today.

    http://www.jiskha.com/display.cgi?id=1313421001

  • math -

    2. I'm assuming you meant:

    -3(-9) - [-5-3] =
    27 - 8 = 19.

    3. 9c^3 + 7c -(3c^3-12+c) =
    9c^3 + 7c - 3c^3 + 12 - c =
    6c^3 + 6c + 12 =
    6(c^3 + c + 2).

    4. Similar to # 3.

    5. x = 1/25(22x - 9w) =
    Multiply both sides by 25:
    25x = 22x - 9w,
    25x - 22x = 9w,
    3x = 9w,
    X = 3w.

    6. -14x - 7(4-7) < (2x-15)
    -14x + 21 < 2x-15
    -14x - 2x < -15 - 21,
    -16x < -36,
    X > -36/-16,
    X > 2 1/4.

  • math -

    7. 0.08 * $413 = $33.04

    8. Width = X-Met3rs.

    Length = (x+8) Meters.

    2x + 2(x+8) = 108m.
    2x + 2x + 16 = 108,
    4x = 108 - 16 = 92,
    X = 23m = Width.

    X+ 8 = 31m = Length.

    9. 0.1x + 300 > 0.03x + 500,
    0.1x - 0.03x > 500 - 300,
    0.07x > 200,
    X > 2857 Copies.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    simplify -4(c+3)2c Please show all work
  2. math

    Simplify. Please be sure to show all of your work. 94-24*2-2/5*1/2
  3. math

    Simplify. Please show all of your work. 12* 1/4 +2/-2^3
  4. math

    Simplify. Please be sure to show all of your work. -3(-9) – |-5 – 3|
  5. math

    Simplify. Please show all of your work 9c^3+7c-(3c^3-12+c)
  6. Algebra

    Simplify. Please show all work. 6b^2 - 4b + 3b^4 - (7b^3 + b^4 - 4b)
  7. chemistry

    1.)Calculate the number of moles in 3.50 x 10^21 atoms of silver. Show all work. 2.) Calculate the number of atoms in 2.58 mol antimony. Show all work 3.) Determine the mass of 1.45 mol FePO4. Show all work. 4.) Calculate the number …
  8. Math

    1. 2 / 9 + 1 /3 2. 1 / 7 + 3 /21 3. 2 /3 + 1/5 4. 1/4 + 2/3 5. 112 + 4 6 6. 1/2 + 2/ 5 7. 1/6 + 5 /12 8. 4/6 + 1/3 9. 1 / 5 + 1 / 8 10. 3/4 + 1 /9 11. 6 /12 + 1/3 12. 4 / 8 + 1/2 OMG help me please anyone and simplify and show all …
  9. Math

    Simplify. Please show all your work and explain. 6a^3b^2/10a^5b^4
  10. algebra

    Simplify using long division.Show all work. (-72-4x^2+8x^3-36x)/(x-3) Also,please solve (8b^3-6)/(2b-1) I greatly appreciate your help.

More Similar Questions