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Mila [183]
3 years ago
9

Which one is the better deal, the 8 inch little zip for $6.25 or the 11 inch big zip for $7.75.

Mathematics
2 answers:
natta225 [31]3 years ago
6 0

Answer:

the 11 inch big zip for 7.75

Step-by-step explanation:

Soloha48 [4]3 years ago
4 0

Answer:

11 inch big zip for $7.75

Step-by-step explanation:

Find the unit price of the 8 inch little zip for $6.25

$6.25/8 = $0.78 per inch of zipper

Find the unit price of the 11 inch big zip for $7.75

$7.75/11 = $0.70 per inch of zipper

The better deal is the 11 inch big zip because it has the lower cost per inch.

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Assoli18 [71]
L x W x H
so 5x5x5 = 125 cm^2 bc its a cube
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3 years ago
Hi, so i have a question and i'm giving away free points so here's the question! If you answer ill put out another question and
Shtirlitz [24]

Answer:

1. Saturday

2(a) 10,944

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Step-by-step explanation:

8 0
3 years ago
a rectangular block is such that the sides of its base are of the length x cm and 3x cm. The sum of all the lengths of all its e
Xelga [282]

Answer:

15x^2 - 12x^3

Step-by-step explanation:

A rectangular block has 3 parts that play into its volume.  length, width and height.  The question gives us length and width in the form of x and 3x, so height is what's missing.

It gives us a bit more information saying the sum of its edges is 20.  We also have to ask how many lengths, widths and heights are there.  That may be a bit hard to understand, but  is you are looking at a block I could ask how many edges are vertical, just going up and down.  These would be the heights.  There are 4 total, and this goes the same for length and width, so 4*length + 4*width and 4*height = 20.  

Taking that and plugging in x for length and 3x for width (or you could do it the other way around, it doesn't matter, you get:

4*x + 4*3x + 4*height = 20

4x + 12x + 4h = 20

16x + 4h = 20

4h = 20 - 16x

h = 5 - 4x

Now we have h in terms of x, which lets us easily find the volume just knowing x.  To find the volume of a rectangular block you just multiply the length, width and height.

x*3x*(5-4x)

3x^2(5-4x)

15x^2 - 12x^3

Question doesn't give a specific value for x at all so you should be done there.  Any number you plug in for x should get you the right answer

5 0
3 years ago
7x+5y=-13<br> -2x=7y+26<br> Solve by elimination
RSB [31]

Answer:

Point form : (1,-4)

Equation for, : x=1, y=-4

Step-by-step explanation: Add the fractions in order to solve for the first variable. Plug this vale into the other equations in order to solve for the remaining variables.

Hope this helps you out! ☺

5 0
3 years ago
Read 2 more answers
Part A: A graph passes through the points (0,2), (1,3), and (2,4). Does this graph represent a linear function or a non-linear f
ad-work [718]

Answer:

  A) linear

  B) y = x is linear; y = 1/x is non-linear

Step-by-step explanation:

A) The points lie on the same straight line, so the function is linear.

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B) Any function that has x to a power other than 1 will be non-linear.

  linear function: y = x

  nonlinear function: y = x^-1 = 1/x

6 0
3 years ago
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