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Vaselesa [24]
3 years ago
8

Help!!! Which one no need to explain!

Mathematics
1 answer:
azamat3 years ago
5 0

Answer: A add the equations and C: Subtract the bottom equation from the top equation.

Step-by-step explanation: By adding the equations, you are left with

12x=8 which successfully eliminates the y values and subracting the bottom equation from the top equation.

Hope this helps!  :)

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Courier charges for packages to a certain destination are 65 cents for the first 250 grams and 10 cents for each additional 100
lukranit [14]

Answer:

  1050 g < weight ≤ 1150 g

Step-by-step explanation:

Let w represent the weight of the package in grams. The the number of 100-gram increments after the first 250 grams is given by ...

  ⌈(w-250)/100⌉ . . . . . . . where ⌈ ⌉ signifies the <em>ceiling</em> function

and the charges for a package exceeding 250 grams will be ...

  0.65 + 0.10⌈(w -250)/100⌉ = 1.55

  0.10⌈(w -250)/100⌉ = 0.90 . . . . . . . . subtract 0.65

  ⌈(w -250)/100⌉ = 9 . . . . . . . . . . . . . . . divide by 0.10

  8 < (w-250)/100 ≤ 9 . . . . . . . . . . . . . . meaning of ceiling function

  800 < w -250 ≤ 900 . . . . . . . . . . . . . multiply by 100

  1050 < w ≤ 1150 . . . . . . . . . . . . . . . . . add 250

The weight in grams could be greater than 1050 and at most 1150 for a charge of $1.55.

3 0
3 years ago
Eight candy bars cost $6.00. Caulatue the cost per candy bar​
natima [27]

Answer:

about $1.34

Step-by-step explanation:

3 0
3 years ago
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got everything right but my teacher said great and then said im missing the graph ? how do i do that ?
Diano4ka-milaya [45]
Ur supposed to have a graph paper and line the 12 and the 3y and 3x
3 0
3 years ago
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3 5/12 + 1 3/8<br><br> I am to lazy i am needed for answer cause my eyes fell off
docker41 [41]

Answer:

4 19/24

......................................

◑﹏◐

7 0
3 years ago
Does this set of ordered pairs represent a function? Why or why not. Don’t need a step to step just the answer
Scrat [10]

Answer:

D. Yes,because every x-value corresponds to exactly one y-value.

Step-by-step explanation:

The given ordered pairs are;

{(-5,-5),(-1,-2),(0,-2),(3,7),(8,9)}

We do not have the same x-value corresponding to more than one y-value.

We can see from the ordered pairs that every x-value corresponds to exactly one y-value.

Therefore the graph of this relation will pass the vertical line test.

3 0
3 years ago
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