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lara31 [8.8K]
2 years ago
15

Modeling an Equation

Mathematics
2 answers:
Vsevolod [243]2 years ago
6 0
Answer: 2x + 4 To model 2x+4, you need :2 positive x-
tiles to represent 2x.4 positive unit tiles to represent.
I hope it helps
qaws [65]2 years ago
4 0

Yes all your used tiles are correct.

Let's solve the equation too

  • 2x+4=3x+(-1)
  • 2x+4=3x-1
  • 4+1=3x-2x
  • x=5
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When making a long distance call from a certain pay phone, the first three minutes of a call cost $2.10. After that, each additi
Sauron [17]

Answer: the number of minutes of long distance call that one can make is lesser than or equal to 12 minutes.

Step-by-step explanation:

Let x represent the number of minutes of long distance call that one makes.

The first three minutes of a call cost $2.10. After that, each additional minute or portion of a minute of that call cost $0.45. This means that if x minutes of long distance call is made, the total cost would be

2.10 + 0.45(x - 3)

Therefore, the inequality to find the number of minutes one can call long distance for $6.15 is expressed as

2.10 + 0.45(x - 3) ≤ 6.15

2.10 + 0.45x - 1.35 ≤ 6.15

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4 0
3 years ago
How do i solve -3=-2x+1 by graphing?
KonstantinChe [14]

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8 0
3 years ago
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ivanzaharov [21]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Hello i need help solving the following inequality X (X + 3) ⩽ X (2X + 5) thanks
igor_vitrenko [27]

Answer:

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Step-by-step explanation:

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