Answer:
Step-by-step explanation:
Remember that

we know that
The sales from the previous month were $152,850
This amount represent the 100%
so
Find out what were last months sales, multiply the sales from the previous month by the factor 1.12
Multiply the first equation by -2 to give
4x - 2y = 6
-x + 2y = 3 Adding:-
3x = 9
x = 3
Plug x = 3 into second equation:-
-3 + 2y = 3
2y = 6
y = 3
Answer is x=3, y = 3
The length of the rectangle is based on its width, so let's call width w and put the length in terms of the width. We are told that the width is 45 less than 4 times the width, so the length is 4w - 45. Area is found by multiplying length times width and we are given the area as 3325. So we will set up length times width and solve for w, which we will then use to solve for l. 3325 = (4w - 45)(w). Multiplying out we have
. Move the constant over by subtraction and then we will have a quadratic that can be factored to solve for w.
. We would put that through the quadratic formula to solve for w. When we do that we get that w = 35 and w = -23.75. The 2 things in math that will never EVER be negative is time and distance/length, so -23.75 is out. That means that the width is 35. The length is 4(35) - 45 which is 95. The dimensions of your rectangle are length is 95 and width is 35. There you go!
Answer:
tarro corto
Step-by-step explanation:
Aquí tenemos que comprar el frasco que tiene el menor costo por volumen.
= Altura del frasco corto
= La altura del frasco alto es el doble que el del frasco corto. = 
= Diámetro del frasco corto
= El diámetro del frasco alto es la mitad del frasco corto = 
El volumen de un cilindro es 
La razón de los volúmenes de los frascos es

El costo del frasco corto por unidad de volumen es

El costo del frasco alto por unidad de volumen es


Entonces, el costo del frasco corto por unidad de volumen es menor que el costo por unidad de volumen del frasco alto.
Por lo tanto, deberíamos tomar el frasco corto.