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andriy [413]
4 years ago
6

Sam está haciendo tartas de manzana y tartas de calabaza para su tienda de tartas. Ella vende cada pastel de manzana por $ 7 y c

ada pastel de calabaza por $ 6. Si Sam vende un total de 80 pasteles un día y gana un total de $ 512, ¿cuántos de
cada tipo de pastel vendió?
​
Mathematics
1 answer:
Margaret [11]4 years ago
4 0

Answer:

pastel de manzana:  32

pastel de calabaza: 48

Step-by-step explanation:

pastel de manzana: x

pastel de calabaza: 80 -x

7 x + 6 (80 - x) = 512

7x + 480 - 6x = 512

pastel de manzana: x = 512 - 480 = 32

pastel de calabaza:  80 - 32 = 48

cheque: 7 x 32 + 6 x 48 = 512

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3 years ago
La media aritmética de los siguientes datos son respectivamente: 1, 4, 1, 1, 4, 2, 3, 1, 4, 2Respuesta necesaria. Opción única.
AlekseyPX

Answer:

<em>La media aritmética es 2.3</em>

Step-by-step explanation:

<u>Average o Promedio</u>

El promerio, average, o valor medio es un valor representativo de un conjunto de datos y se calcula según la fórmula:

\displaystyle \bar x=\frac{\sum x_i}{n}

Donde xi es el valor de cada dato, y n es el número de datos.

Los datos presentados son:

1, 4, 1, 1, 4, 2, 3, 1, 4, 2

Nótese que hay un total de n=10 datos. Aplicamos la fórmula recordando que el símbolo Σ significa <em>sumatoria</em>:

\displaystyle \bar x=\frac{1+ 4+ 1+ 1+ 4+ 2+ 3+ 1+ 4+ 2}{10}

\displaystyle \bar x=\frac{23}{10}=2.3

La media aritmética es 2.3

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2. The picture shows a feeding trough that is shaped like a right prism.
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Step-by-step explanation:

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Suppose there are 175 tickets available for a school play.
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