I have no answer, because you have no question.
Answer:
y = kx.
Step-by-step explanation:
A proportional relationship between a quantity y and a quantity x that has a constant of proportionality k is represented by the equation y = kx.
Answer:
Step-by-step explanation:
Let:
The area of the cardboard can be calculated using the formula to find the area of a rectangle:
The area of the new cardboard would be:
So:
Solving for h:
Therefore, the dimensions of the initial cardboard are:
<u><em>Translation:</em></u>
Sea:
El área de la cartulina se puede calcular usando la fórmula para encontrar el área de un rectángulo:
El área de la nueva cartulina sería:
Entonces:
Resolviendo para h:
Por lo tanto, las dimensiones de la cartulina inicial son:
X + y + z = -3
x - y + 2z = -10
----------------------add
2x + 3z = - 13
x - y + 2z = -10
2x + y + z = -5
---------------------add
3x + 3z = -15
2x + 3z = -13
3x + 3z = -15.....multiply by -1
------------------
2x + 3z = -13
-3x - 3z = 15 (result of multiplying by -1)
-----------------add
-x = 2
x = -2 <===
2x + 3z = -13
2(-2) + 3z = -13
-4 + 3z = -13
3z = -13 + 4
3z = - 9
z = -9/3
z = -3 <===
x + y + z = -3
-2 + y - 3 = -3
-5 + y = -3
y = -3 + 5
y = 2 <===
solution is (-2 , 2 , -3)