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KonstantinChe [14]
2 years ago
11

This is a linear equations question so pls help me I’m dying of stress thank you! ^^

Mathematics
2 answers:
tatiyna2 years ago
8 0

Answer:

B

Step-by-step explanation:

y = x² → (1)

y = 3x - 2 → (2)

substitute y = x² into (2)

x² = 3x - 2 ← subtract 3x - 2 from both sides

x² - 3x + 2 = 0 ← in standard form

(x - 1)(x - 2) = 0 ← in factored form

equate each factor to zero and solve for x

x - 1 = 0 ⇒ x = 1

x - 2 = 0 ⇒ x = 2

substitute these values into (2) for corresponding values of y

x = 1 : y = 3(1) - 2 = 3 - 2 = 1 ⇒ (1, 1 )

x = 2 : y = 3(2) - 2 = 6 - 2 = 4 ⇒ (2, 4 )

topjm [15]2 years ago
7 0

Answer:

the answer to this problem is D:(-2,4)(1,1)

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Alenkinab [10]

Answer:

<u>Yes, the outdoor ice skating rink should be installed.</u>

Step-by-step explanation:

We can reach this conclusion after simulating the profit for each possible scenario made by The US weather service estimates:

<u>For 80-day suitable weather per year:</u>

  • total invested capital =<u> </u>$950,000 + $200,000 (total operating and maintaining cost) = $1,150,000
  • per day revenue= 500 x $20 = $10,000
  • total revenue per season = $10,000 x 80 days = $800,000
  • total operating and maintaining cost = $2,500 x 80 = $200,000
  • total profit (returns) in a season = $800,000-$200,000<u> = $600,000</u>
  • per year rate of return before taxes =  52% (total profit / total invested capital *100; $600,000/$1,1150,000 *100 = 52%

<u>For 100 days suitable weather per year:</u>

  • total invested capital =<u> </u>$950,000 + $200,000 (total operating and maintaining cost) = $1,150,000
  • per day revenue= 400 x $20 = $8,000
  • total revenue per season = $8,000 x 100 days = $800,000
  • total operating and maintaining cost = $2,500 x 100 = $250,000
  • total profit (returns) in a season = $800,000-$250,000<u> = $550,000</u>
  • per year rate of return before taxes =  52% (total profit / total invested capital *100; $550,000/$1,1150,000 *100 = 47%

<u>For 120 days suitable weather per year:</u>

  • total invested capital =<u> </u>$950,000 + $200,000 (total operating and maintaining cost) = $1,150,000
  • per day revenue= 300 x $20 = $6,000
  • total revenue per season = $6,000 x 120 days = $720,000
  • total operating and maintaining cost = $2,500 x 120 = $300,000
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Threfore, we notice that the 22% per year rate of return before taxes criteria was met in each of the possible scenarios, making the endeavor worthwhile.

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7 0
3 years ago
A school sold brownies and cupcakes at a bake sale. There were 592 total items available for sale. All 286 brownies were sold. O
LUCKY_DIMON [66]

Answer:

A. 592 - 286 - 49 = c

Step-by-step explanation:

A school sold brownies and cupcakes at a bake sale. There were 592 total items available for sale. All 286 brownies were sold. Of the cupcakes for sale, 49 did not sell. How many cupcakes did sell at the bake sale?

Total number = 592

Total number of brownies = 286

The cup cakes for sale = 592 - 286

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49 of the cupcakes did not sell

The cupcakes that sold = 306 - 49

= 257 cupcakes were sold.

Therefore, the correct equation to solve. A. 592 - 286 - 49 = c

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The answer is D, 3/2
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The correct answer is the second option.
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Answer:

42

Step-by-step explanation:

We know that 10x + 6y = 7, and so

6(10x + 6y) = 6(7) = 42

8 0
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