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Hitman42 [59]
3 years ago
7

Isabelle earns $200 a week at a bookstore plus $2 for every magazine she sells. She uses the equation to represent her earnings,

where x represents magazine sales and y represents her weekly pay. If she needs to earn $280 next week to pay for her school trip, how many magazines does she need to sell?
Mathematics
2 answers:
bearhunter [10]3 years ago
8 0

Answer:

40 magazines.

Step-by-step explanation:

  • $200 pay from the bookstore.
  • $2 every magazine sold.
  • Needs $280 for her school trip.

She gets $200 from the book store the week she needs $280 for the school trip. Therefore, she only needs $80 in order to go.

$80 ÷ $2 = 40

40 magazines.

Vesna [10]3 years ago
7 0

Answer:

40 is the answer.....  your welcome

Step-by-step explanation:

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y_p=(at^3+bt^2+ct)e^{-3t}

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(9at^3+(9b-18a)t^2+(9c-12b+6a)t+2b-6c)e^{-3t}+3(-3at^3+(3a-3b)t^2+(2b-3c)t+c)e^{-3t}=t^2e^{-3t}

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