Analizando la frase de la paloma, podemos ver que la ecuación correcta será:
x + x/2 + x/4 + 1 = 100
Podemos analizar la frase de la paloma por partes.
"somos estas..."
definamos "estas" como x
"...más la mitad de las que estamos..."
entonces tenemos:
x + x/2
"... más la cuarta parte de las que somos..."
x + x/2 + x/4
"...y agregando una..."
x + x/2 + x/4 + 1
"...las 100 palomas serán..."
Interpretamos esto como:
"la expresión anterior es igual a 100"
Entonces escribimos eso:
x + x/2 + x/4 + 1 = 100
(las que somos (x) más la mitad de las que somos (x/2) más un cuarto de las que somos (x/4) más una (1) son igual a 100 palomas)
Así, concluimos que la ecuación que modela la situación descrita es:
x + x/2 + x/4 + 1 = 100
Que sería la opción 1.
Si quieres aprender más, puedes leer.
brainly.com/question/24454449
Answer:
wheres the question?
Step-by-step explanation:
The answer is:
20 m² .__________________________________________________________Explanation:__________________________________________________________
Formula for "S.A." (Surface area) of a cylinder
S.A.
= 2
r² + 2
* r * h ;
_______________________________________in which "r" = length of radius of circle at the end; and "h" = "height" ;
__________________________________________Given: r = 2 m ; and h = 3 m ;
__________________________________________ We can "plug in" these given values; and solve for the "surface area" in terms of
"
" .
____________________________________________S.A. = 2
r² + 2
* r * h ;
= 2
* (2)² + 2
* (2) * (3) ;
= 2
* (4) + 2
* (6) ;
= (8
) + (12)
= 20 m² ._______________________________________
Simplifying
X2 + -6xy + -12 = 0
Reorder the terms:
-12 + X2 + -6xy = 0
Solving
-12 + X2 + -6xy = 0
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '12' to each side of the equation.
-12 + X2 + 12 + -6xy = 0 + 12
Reorder the terms:
-12 + 12 + X2 + -6xy = 0 + 12
Combine like terms: -12 + 12 = 0
0 + X2 + -6xy = 0 + 12
X2 + -6xy = 0 + 12
Combine like terms: 0 + 12 = 12
X2 + -6xy = 12
Add '6xy' to each side of the equation.
X2 + -6xy + 6xy = 12 + 6xy
Combine like terms: -6xy + 6xy = 0
X2 + 0 = 12 + 6xy
X2 = 12 + 6xy
Simplifying
X2 = 12 + 6xy
Reorder the terms:
-12 + X2 + -6xy = 12 + 6xy + -12 + -6xy
Reorder the terms:
-12 + X2 + -6xy = 12 + -12 + 6xy + -6xy
Combine like terms: 12 + -12 = 0
-12 + X2 + -6xy = 0 + 6xy + -6xy
-12 + X2 + -6xy = 6xy + -6xy
Combine like terms: 6xy + -6xy = 0
-12 + X2 + -6xy = 0
The solution to this equation could not be determined.
Answer:
There are 21 skateboards and bicycles in the shop.
A bicycle has two wheels, and a skateboard has four wheels
54 new wheels are needed
Number of bicycles = 15
Number of skateboards = 6
Step-by-step explanation:
Number of bicycles and skateboards = 21
Number of new wheels ordered = 54
Number of wheels in a bicycle = 2
Number of wheels in a skateboard = 4
Number of skateboards and bicycles in shop?
Let number of bicycles = b
Number of skateboards = s
b + s = 21 - - - (1)
(2*b) + (4*s) = 54
2b + 4s = 54 - - - - - - (2)
From (1)
b = 21 - s
2(21 - s) + 4s = 54
42 - 2s + 4s = 54
42 + 2s = 54
2s = 54 - 42
2s = 12
s = 6
From : b = 21 - s
b = 21 - 6
b = 15
Number of bicycles = 15
Number of skateboards = 6