Answer:
11
Step-by-step explanation:
Let's call the white marbles w and the red marbles r. We can write:
w + r = 16 (1)
w = 3r - 4 (2)
3r - 4 + r = 16 (3) (Substitute (2) into (1))
4r = 20 (simplify)
r = 5 (divide by 4) which means w = 16 - 5 = 11
To find the slope we will need to differentiate!
Step 1:

// let's take the derivative with respect to x
Since there is no x value specified there is an infinite number of slope values that we can input into this equation.
La respuesta es 40 y 90/36 ya que al sumar los enteros y despues las fracciones nos da este resultado
Answer:
x=2
Step-by-step explanation:
divide -5 to both sides to isolate the x. two negatives make a positive therefore x=2.
i hope this helps :)