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MissTica
3 years ago
14

Emily sold 117 boxes of cookies for a fundraiser. If she sold 60% of the total number of boxes sold for the fundraiser, how many

total boxes of cookies were sold for the fundraiser?
Mathematics
1 answer:
erastova [34]3 years ago
8 0

Answer:

80 is the answer

Step-by-step explanation:

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The rate of 225 mi in 7 hr written as a unit rate
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Answer:

32.14 an hour

Step-by-step explanation:

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3 years ago
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The standard form of the equation of a parabola is y = 7x2 + 14x + 4. What is the vertex form of the equation?
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The vertex of <span>y = 7x2 + 14x + 4</span> is at (-1,-3) (see attachment)

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Quando existe, dizemos que a solução de um sistema de equações lineares é o conjunto ordenado de números que satisfaz todas as e
QveST [7]
X representa o numero das suas respostas certas.
y represnta o numero das suas respostas erradas.
O total de perguntas <span>é 25, portanto
x + y = 25

Agora tratamos do dinheiro.
Come</span>ça com <span>R$ 500,00
Pelas x respostas certas, recebe 200x.
Pelas y respostas errads perde 150y.
O total de dineheiro inicial mais os ganhos menos as perdas s</span>ão iguais a
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500 + 200x - 150y = 600
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20x - 15y = 10

Temos um sistema de duas equações com duas variaveis.

<span>x + y = 25</span>
20x - 15y = 10

      15x + 15y = 375
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---------------------------
       35x         = 385
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x + y = 25

11 + y = 25

y = 14

Resposta: Errou 14 perguntas.


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How to add and subtract fractions with unlike denominators and mixed numbers?
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