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katrin [286]
2 years ago
15

Part A: Nails by Nina sells nail polish in a package of three for $21.88. If Nina purchased the polish trio packs for $14 each,

what is the percentage of markup based on cost, rounded to the nearest tenth of a percent? Show your work.​
Mathematics
1 answer:
dedylja [7]2 years ago
7 0

Answer:

  56.3%

Step-by-step explanation:

The ratio of the selling price to the cost is ...

  21.88/14 = 1.562857...

That is, 0.562857... of the original cost has been added to that cost. This markup amounts to about ...

  0.562857 × 100% ≈ 56.3%

of the cost.

The markup percentage is about 56.3%.

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likoan [24]

Answer: 230cm²

Step-by-step explanation:

>We can do this by splitting the figure into 2 trapeziums.

>Additionally, you can see that both trapeziums bear the same lengths a and b. Hence, we can use this formula: \frac{1}{2} * (a+b) * (total height).

>Thus,

Area = \frac{1}{2} *(7+16)*20=230

4 0
2 years ago
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(−19, 12), (−9, 1) Find the slope of the line through each pair of points.
Alchen [17]

Answer:

-11/10

Step-by-step explanation:

Slope = rise/run

m = (12-1) / (-19-(-9))

m = -11/10

7 0
3 years ago
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Round 3,567 to the nearest ten​
WINSTONCH [101]

Answer:3,570

Step-by-step explanation: The 7 is over 5 so u know, 5 or more up the score. 4 percent or less let it rest.

8 0
4 years ago
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You are working as an office apprentice for the bksb Newcastle Arena.
makvit [3.9K]

Answer:

Mean = £1.8 million


Step-by-step explanation:

The MEAN is the sum of all the numbers divided by the number of numbers.

  • <u>There are 5 numbers in total</u>
  • <u>The sum is 1.4+1.6+1.8+2.5+1.7=9 million</u>

Hence the mean is \frac{9}{5}=1.8 million

5 0
3 years ago
What is the perimeter of the figure in the diagram (round to three decimal places if necessary)? A) 54.5 B) 42.634 C) 39.5 D) 27
beks73 [17]

Answer:

D

Step-by-step explanation:

First add all the simple line up so;

8 + 7 + 3 + 2 = 20

Then use Pythagoras to work out the lengths of the remaining lines

\sqrt{ {2}^{2}  +  {4}^{2} }   = 2 \sqrt{5}  \\  \sqrt{ {3}^{2}  +  {1}^{2} }  =  \sqrt{10}  \\ 20 +  \sqrt{10}  + 2 \sqrt{5} = 27.63441362

So to three decimal places it would be;

27.634

7 0
3 years ago
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