11th grade

posted by .

can you please evaluate these expressions if x=5 y=3.5 and w= -3

1.|2x-15|
2.|-2y=8|-9
3.|w-x|-|10y-w|

  • Math, not "11th grade" -

    Assistance needed.

    Please type your subject in the School Subject box. Any other words are likely to delay responses from a teacher who knows that subject well.

  • 11th grade -

    The | | signs mean "absolute value". When you take the absolute value of a number, you always take the numbers positive value. So |-5| = 5, |-21| = 21, |24| = 24, |5| = 5, and so on.

    So, for the first expression, if we replace the x with 5, we get that:

    |2*x-15| = |(2*5)-15| = |10-15| = |-5| = 5

    There seems to be an error in your second expression, because there can't be any equals signs inside the || signs.

    For the third expression we get that:

    |w-x|-|10y-w| =
    |-3-5| - |(10*3.5)-(-3)| =
    |-8| - | 35 + 3| =
    8 - 38 = -30

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math:Evaluate Expressions

    e/3-2x3 for e=41.4 Please explain. Thank you!
  2. 11th grade

    The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?
  3. math 11th grade

    evaluate each function. g(x)=|x-2|+3;find g(0)
  4. PLEASE HELP

    Simplify the following algebraic expressions: Evaluate; P(-1/2) if P(x)= 2X^4 + X^3 + 12
  5. Algebra 2

    "My husband's age," remarked a lady the other day, "is represented by the figures of my own age reversed. He is my senior, and the difference between our ages is one-eleventh of their sum." 10x + y = husband's age 10y + x = wife's …
  6. math help

    5x+10y +15z-15x+10y-5z+5x-10y-5z / (5x+10y+15z)-(15x+10y-5z)+(5x-10y-5z) a. 1/3 b. 1 c. x+2y+z / x-2y+3z d. x-2y-z / x+2y-3z e. x-2y-z / x+2y+z my answer is none of above, is - 1/3, I didn't know I done it wrong or the question is …
  7. math

    Could someone check these questions for me?
  8. algebra

    What is the equation of the given line in standard form?
  9. math

    Are trigonometric functions taught in 11th grade, if so ,is it wrong that i wasn't tought that topic in 11th grade?
  10. Math. Need help

    1.if g=5 and k=1, evaluate 9+gk a. 13 b. 14 c. 15 d. 16 2.Evaluate a-b^2/b if a = 10 and b = 2. a. 1 b. 3 c. 8 d. 32 3.Evaluate 3xy^2 - y if x = 2 and y = 5. a. 26 b. 30 c. 120 d. 145 4.Evaluate 2d + d^2/3 if d = 6. a. 4 b. 12 c. 14 …

More Similar Questions