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Semmy [17]
2 years ago
15

7/2x-5/2x=20/3x+10solve with steps​

Mathematics
1 answer:
erastovalidia [21]2 years ago
4 0

Answer:

x= 30/ 17

Step-by-step explanation:

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Do you think three weeks (21 days) is enough time to observe all of the Moon’s phases? Why or why not?
In-s [12.5K]

Answer:

No, because all the moon phases last 28 days. 21 days is not enough time to observed them.

Step-by-step explanation:

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What is the absolute difference in boxes sold between Liszt and mark
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Answer:

( can you include the problem from the math?)

Step-by-step explanation:

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3 years ago
¿Qué pasa cuando nos enfrentamos con dos incógnitas, en el caso de que las ecuaciones que se generen sean de primer grado y form
kolbaska11 [484]
<h2>Explicación:</h2><h2 />

Una ecuación de primer grado es una ecuación lineal en la que se ven involucradas una o más variables, sin existir productos entre ellas. Por ejemplo, una ecuación de primer grado con dos incógnitas es:

y=mx+b \\ \\m:pendiente \\ \\ b:y-intercept

De manera que un sistema de ecuaciones con dos incógnitas podría ser:

y=m_{1}x+b_{1} \\ \\ y=m_{2}x+b_{2}

que representan ecuaciones de rectas.

Existen tres posibilidades:

1. Una solución:

Ocurre cuando las rectas no son paralelas, es decir:

m_{1}\neq m_{2}

Entonces la solución es la intersección de estas dos rectas.

2. Infinitas soluciones:

Ocurre cuando las ecuaciones son las mismas, en cuyo caso las rectas son las mismas y se intersectan en todos los puntos, es decir:

m_{1}=m_{2} \\ \\ b_{1}=b_{2}

3. Ninguna solución:

Ocurre cuando las rectas son paralelas pero tienen distinta intersección con el eje y, es decir:

m_{1}=m_{2} \\ \\ b_{1}\neq b_{2}

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3 years ago
Kelsie sold digital cameras on her website. She bought the cameras for $65 each and included a 60% markup to get the selling pri
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0.6 * 65 = 39

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So she's selling camera's for $104 each.
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3 years ago
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What’s the question?
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3 years ago
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