Answer:
y = 5x + 12
Step-by-step explanation:
In this question, we need to make a line parallel to the line given to us.
We know that the slope of the new line has to be 5, since the slopes can't make the lines intercept each other.
We have to find our y-intercept, or beginning point. To do this, we would plug in our given point (-1, 7) into the y = 5x + b equation and solve for b.
Solve:
7 = 5(-1) + b
7 = -5 + b
Add 5 to both sides.
12 = b
This means that our y-intercept, or beginning point, is 12.
Plug that into "b" in our new equation to get your answer.
y = 5x + 12
Your answer would be y = 5x + 12
Resolviendo un sistema de ecuaciones, vemos que se venden 6 libros de secundaria 4 y 6 libros de secundaria 1.
<h3>
¿Como escribir un sistema de ecuaciones?</h3>
Primero definimos dos variables:
- x = numero de libros de secundaria 4 vendidos.
- k = número de libros de secundaria 1 vendidos.
Sabemos que se venden 12 libros en total, entonces:
x + k = 12
Tambien sabemos que se recauda un total de $82, entonces:
x*$8 + k*$6 = $82
Entonces tenemos dos ecuaciones.
a) Usando la primer ecuacion, podemos aislar x para tener:
x = 12 - k
b) Ahora podemos reemplazar eso en la otra ecuación para solucionar el sistema.
(12 - k)*$8 + k*$6 = $82
$96 - $2*x = $82
$2*x = $12
x = $12/$2 = 6
Es decir se venden 6 libros de secundaria 4, y como se venden 12 libros en total, los otros 6 libros vendidos son de secundaria 1.
Si quieres aprender más sobre sistemas de ecuaciones:
brainly.com/question/13729904
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Answer:
Only five points
Step-by-step explanation:
For such an question