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natali 33 [55]
3 years ago
10

7. Big screen TV's are typically classified by the

Mathematics
1 answer:
Serggg [28]3 years ago
6 0

Answer:100

Step-by-step explanation:

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Work out the percentage change to 2 decimal places when a price of £15 is decreased to £14.
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Answer:

The total change is £21.02 from the original amount of £78.98. Therefore, the percentage change is directly related to the original amount.

so the answer in a percentage is 15.22%.

Step-by-step explanation:

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2 years ago
The material used to make a storage box costs $1.25 per square foot. The boxes have the same volume, so how much does a company
riadik2000 [5.3K]

Answer: A company saves $134.38 by choosing to make 50 of Box 2 instead of Box 1

Step-by-step explanation:

Hi, to answer this question we have to calculate the surface area of both boxes.

<em>Surface area (A) = 2wl + 2lh + 2hw, </em>

Where w is width, l is length , and h is height.

  • Box 1 = A = 2(6x20) + 2( 20x4) + 2 (4 x 6) =2 (120)+ 2 (80)+ 2(24) =448 in2
  • Box 2 = A = 2 (4x15)+ 2(15x8)+ 2(8x4) = 2(60)+2(120)+2(32)=424 in2

Since 1 inch = 0.0833333 foot

  • Box 1 = 448 in2 x 0,0833333 =37.34 ft2
  • Box 2= 424 in2 x 0,0833333 =35.19 ft2

Since the material used to make a storage box costs $1.25 per square foot.

  • Box 1 =37.34 ft2 x1.25 = $ 46.675
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Since 50 of each are made:

  • Box 1 = $ 46.675 x50 =2,333.750
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Subtracting both costs:

2,333.750(1) - 2,199.37(2) = $134.38

6 0
2 years ago
Identified the pattern for the following sequence find the next three terms in the sequence -1 3 -9 27
Nastasia [14]
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