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Minchanka [31]
3 years ago
13

The function P\left(x\right)=5x+10 P ( x ) = 5 x + 10 represents the total cost in dollars, P\left(x\right) P ( x ) , of buying

x x paperback books from an online book club. (a) Identify the linear term and give a possible interpretation of its meaning. (b) Identify the constant term and give a possible interpretation of its meaning. (c) State the cost of ordering 12 paperback books from the book club. (d) Determine the number of paperback books someone can order if spending no more than $50.
please help!!! 30 points
Mathematics
1 answer:
Svetllana [295]3 years ago
5 0
Im pretty sure the answer is b
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12=y-3y what's the answer
nevsk [136]
12=y-3y  Combine like terms
12=-2y  Divide
y=-6
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3 years ago
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Find g(a-2)+3g(2a) if g(x)=x²-5x+8
sertanlavr [38]

Answer:

13a² - 39a + 46

Step-by-step explanation:

To find g(a-2)+3g(2a), find each part using the function g(x)=x²-5x+8.

g(a-2) = (a-2)²-5(a-2)+8 = a² - 4a + 4-5a + 10+8 = a² - 9a + 22

3g(2a) = 3{(2a)²-5(2a)+8} = 3{ 4a² - 10a + 8} = 12a² - 30a + 24

Combine the values to find g(a-2)+3g(2a).

g(a-2)+3g(2a) = (a² - 9a + 22) + (12a² - 30a + 24) = 13a² - 39a + 46

4 0
3 years ago
Four years ago Ravi was 8 years older than Priya. If he is now 3times as old as she is, find their present ages?
GenaCL600 [577]

Answer:

24

Step-by-step explanation:

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4 0
3 years ago
Solve the system by elimination 1: x+5y-4z=-10, 2x-y+5z=-9, 2x-10y-5z=0 .. . 2. Solve the system by substitution: 2x-y+z=-4, z=5
Kryger [21]
1 )
1st and 2nd equation (multiply 1st by -2 ):
-2x - 10 y + 8 z = 20
2 x -  y    + 5 z = -9
---------------------------
       - 11 y + 13 z = 11  /  * ( -20 )
1st and 3rd:
- 2 x - 10 y + 8 z = 20
   2 x - 10 y - 5 z = 0
-----------------------------
         - 20 x + 3 z = 20  /  * 11
        ----------------------------------
         220 y - 260 z = -220
        - 220 y + 33 z = 220
        ------------------------------
                       z = 0,      y = -1,        x = - 5
2 )  
       2 x - y + 5 = -4
       - 2 x + 3 y - 5 = - 10
       Substitution: y = 2 x + 9
       - 2 x + 3(2 x + 9 ) = -5
        4 x = - 32,          x = -8,    y = -7,   z = 5
3 )
      x + y + z = 11
   1.5 x+3 y +1.5 z = 21
      x = 2 y
   ------------------------
      3 y + z = 11  / * (-2)
      6 y + 1.5 z = 21
    ------------------------
     - 6 y - 2 z = -22
       6 y + 1.5 z = 21
      ------------------------
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8 0
3 years ago
What is the simplest form for 4/3?
shutvik [7]

4/3 in simplest form is 4/3 but in decimal form it would be 1.33333

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3 0
3 years ago
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