Answer: a
Step-by-step explanation: 19x+ 2x=21x. Then 20+15 is 35. So it would be 21x+35
Answer:
1. A
2. C
3. B
Step-by-step explanation:
1. we can create an equation y = 48x + 96
if we plug in 1 we get 144
2. we can create an equation y = 10x to represent how much battery you will lose every hour
if we plug in 5 to x, we get y = 50
so we get the plot point: (5, 50)
3. process of elimination
N/3= -12.
You want to get "N" by itself. On one side of the equation, with no other number. To do this, we do the opposite of what we have next to the letter "N"
In this case, N is being divided by 3, and the opposite of dividing is multiplying.
So you need to multiply both sides by 3.
The 3's on the left side cancel out, leaving N by itself.
Now you have N= -12 * 3
-12 * 3 = -36
So N = -36
Answer: El número es 4.
Step-by-step explanation:
Sea X un número.
Acá tenemos:
"Si un número se multiplica por 7"
Esto se escribe como 7*X
"... El resultado es igual al número aumentado en 24"
Esto lo podemos escribir como:
7*X = X + 24
Ahora debemos resolver esta ecuación para X.
7*X = X + 24
Primero, debemos llevar todos los términos con X al mismo lado de la ecuación, para hacer esto, podemos restar X en ambos lados:
7*X - X = (X + 24) - X
6*X = 24
Ahora debemos dividir ambos lados por 6.
6*X/6 = 24/6
X = 4
El número es 4.
V+F-E=2
F-E=2-V
-E=2-V-F
E=-2+V+F
