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Marianna [84]
2 years ago
11

Area as a sum (-2+x)5

Mathematics
1 answer:
Nezavi [6.7K]2 years ago
5 0

Answer:

21

Step-by-step explanation:

lol

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You are planning to take a group of friends to the movies for your birthday. The local movie theater charges $12.99 per person.
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The answer is 6 People. You make the two equations first 12.99x and 8.99x+20. And then make them equal each other 12.99x = 8.99x+20. Then you use algebra to solve for the x and you get an answer of 5. That is the number of people that would cause the two prices to break even (be the same price). So in order for the group rate to be the better deal you need 6 people to attend.
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3 years ago
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Todd uses 21 white tiles & some black tiles to make a mosaic.The mosaic has a total area of 144 square centimeters.Each tile
icang [17]

Answer: Todd used 27 black tiles.

Step-by-step explanation:

Let x represent the number of black tiles that Todd used.

Todd uses 21 white tiles & some black tiles to make a mosaic. This means that the total number of white and black tiles that Todd used is 21 + x

Each tile has an area of 3 square centimeters. This means that the total area covered by the white tiles is

21 × 3 = 63 square centimeters

Also, the total area covered by the black tiles is

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The mosaic has a total area of 144 square centimeters. This means that

3x + 63 = 144

3x = 144 - 63

3x = 81

x = 81/3 = 27

3 0
3 years ago
Use the net below to determine the surface area of the cylinder.
pentagon [3]

The correct answer should be :

Option 3 : 753.6cm^{2}

Hope this helps,

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2 years ago
7x+8x(9y-) respondaa por favorzinho​
poizon [28]

Answer:

7x+72xy

Step-by-step explanation:

7x+8x(9y)=7x+72xy

3 0
2 years ago
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Answer:

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2 years ago
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