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elixir [45]
3 years ago
6

Solve the system:

Mathematics
2 answers:
navik [9.2K]3 years ago
7 0

Answer: D

Step-by-step explanation:

(5) = 4(6) - 19

5= 24-19

5= 5

TRUE

(5) = -3(6) + 23

5 = -18 + 23

5=5

TRUE

seropon [69]3 years ago
3 0

Answer:

<h2>It is D (6,5)</h2>

y = 4x - 19 \\ y =  - 3x + 23 \\  \\ 4x - 19 =  - 3x + 23 \\ 4x + 3x = 23 + 19 \\ 7x = 42 \\ x = 6 \\  \\ y = 4x - 19 \\ y = 4(6) - 19 \\ y = 24 - 19 \\ y = 5 \\  \\ (6.5)

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Ella purchased a game that was on sale for 12% off. The sales tax in her county is 6%. Let y represent the original price of the
klio [65]

Answer:

The expression that can be used to determine the final cost of the game is

1.06(0.88 y) ⇒ (C)

Step-by-step explanation:

  • If the price of an item is discounted, that mean its new price will be less its initial price
  • The taxes on item, makes its new price greater than the initial price because tax is add

Let us solve the problem

∵ Ella purchased a game that was on sale for 12% off

→ That means the new price will (100% - 12%) of the initial price

∵ y represented the initial price of the game

→ Multiply y by (100% - 12%) to get the new price

∴ The new price = y (100% - 12%)

∴ The new price = y (88%)

→ Change 88% to normal number by divide it by 100

∴ The new price = y (\frac{88}{100})

∴ The new price = 0.88 y

∵ The sales tax in her county is 6%

→ That means the final cost will be (100% + 6%) of 0.88 y

∴ The final cost = (100% + 6%) × (0.88 y)

∴ The final cost = 106% × (0.88 y)

→ Change 106% to normal number by divide it by 100

∴ The final cost = \frac{106}{100} × (0.88 y)

∴ The final cost = 1.06(0.88 y)

The expression that can be used to determine the final cost of the game is 1.06(0.88 y)

4 0
2 years ago
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bearhunter [10]

Answer:

7-12 is 5

Step-by-step explanation:

First you want to turn this into addition and make 12 it's inverse 7+(-12) now with 7+(-12) it is basically 12-7. 12-7=5 so your answer is 5

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3 years ago
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Answer:

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Step-by-step explanation:

The number of floors that the buliding contain,

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; 2/18 × 126

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finlep [7]
7/15, 0.65, .0715
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3 years ago
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Rudiy27

Answer:

c

Step-by-step explanation:

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