First one is4
Second one is28
Third one is 13
Answer:
110.8 feet
Step-by-step explanation:
Find the difference in sea level by subtracting 236 from 346.8:
346.8 - 236
= 110.8
So, the difference in sea level is 110.8 feet
A= (bh)/3
A= (X^2)/3 I believe
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
#SPJ1
y = mx + b
"m" is the slope, "b" is the y-intercept (the y value when x = 0)
You need to find "m" and "b"
For lines to be parallel, the slopes have to be the same.
The given line's slope is 1/2, so the parallel line's slope is also 1/2.
y = 1/2x + b
To find "b", you can plug in the point (10, -5) into the equation.
y = 1/2x + b
-5 = 1/2(10) + b
-5 = 5 + b Subtract 5 on both sides to get "b" by itself
-10 = b
y = 1/2x - 10 Your answer is D (you could have just found the slope to get your answer, since all the slopes are different)
