Answer:
La familia de Trevor gastó 86.4 dólares al bañarse en todo el mes.
Step-by-step explanation:
El costo del agua viene dado por:
(1)
Y cada persona de la familia de Trevor gasto en promedio 72 litros de agua. Si la familia tiene 6 integrantes (incluido Trevor) entonces:
(2)
Entonces, toda la familia usó 432 litros de agua en promedio en todo el mes.
Para saber el dinero total gastado por la familia debemos multiplicar la ecuación (1) y la ecuacion (2):
![C = \$0.20/L*432 L = \$86.4](https://tex.z-dn.net/?f=%20C%20%3D%20%5C%240.20%2FL%2A432%20L%20%3D%20%5C%2486.4%20)
Por lo tanto, la familia de Trevor gastó 86.4 dólares al bañarse en todo el mes.
Espero que te sea de utilidad!
Given:
5) The expressions are
![16x+24y+32](https://tex.z-dn.net/?f=16x%2B24y%2B32)
![8(2x+3y+4)](https://tex.z-dn.net/?f=8%282x%2B3y%2B4%29)
![4(4x+24y+8)](https://tex.z-dn.net/?f=4%284x%2B24y%2B8%29)
7) The expression is
![7(3-x)+15x](https://tex.z-dn.net/?f=7%283-x%29%2B15x)
To find:
5) Whether the given expressions are equivalent.
7) simplified form of given expression.
Solution:
5)
First expression is
![16x+24y+32](https://tex.z-dn.net/?f=16x%2B24y%2B32)
Second expression is
![8(2x+3y+4)](https://tex.z-dn.net/?f=8%282x%2B3y%2B4%29)
![=8(2x)+8(3y)+8(4)](https://tex.z-dn.net/?f=%3D8%282x%29%2B8%283y%29%2B8%284%29)
![=16x+24y+32](https://tex.z-dn.net/?f=%3D16x%2B24y%2B32)
Third expression is
![4(4x+24y+8)](https://tex.z-dn.net/?f=4%284x%2B24y%2B8%29)
![=4(4x)+4(24y)+4(8)](https://tex.z-dn.net/?f=%3D4%284x%29%2B4%2824y%29%2B4%288%29)
![=16x+96y+32](https://tex.z-dn.net/?f=%3D16x%2B96y%2B32)
Therefore, the simplified forms of given expressions are
respectively. It means only first and second expressions and equivalent.
7)
We have,
![7(3-x)+15x](https://tex.z-dn.net/?f=7%283-x%29%2B15x)
![=7(3)+7(-x)+15x](https://tex.z-dn.net/?f=%3D7%283%29%2B7%28-x%29%2B15x)
![=21-7x+15x](https://tex.z-dn.net/?f=%3D21-7x%2B15x)
![=21+8x](https://tex.z-dn.net/?f=%3D21%2B8x)
Therefore, the simplified form of given expression is
.
V(n)=$52*n+$48, where n is quantity of boxes
V(6)=$52*6+$48=$360
Cost of 6 boxes of paper would $360
Answer:
49%
Step-by-step explanation:
First find how much Alice is paying for the all three service currently.
Amount paid by Alice at present= 59 + 49 + 69 = $ 177
If she switches to 90 NOW plan, then the amount saved = 177 - 90 = $ 87
Percentage of savings = (saved amount ÷ total amount she was paying at present) * 100
![= \frac{87}{177}* 100\\\\= 49.15](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B87%7D%7B177%7D%2A%20100%5C%5C%5C%5C%3D%2049.15)
= 49 %