T - 285 = 345
t - 285 + 285 = 345 + 285
t = 630
630 tickets were available originally.
Subtract 4 from both sides: -3x = -27
Divide by -3 on both sides: x = 9
x = 9
Answer:
![6\ lb = 2.724\ kg](https://tex.z-dn.net/?f=6%5C%20lb%20%3D%202.724%5C%20kg)
![11\ kg = 24.2\ lb](https://tex.z-dn.net/?f=11%5C%20kg%20%3D%2024.2%5C%20lb)
Step-by-step explanation:
Given
![1\ kg = 2.2\ lb](https://tex.z-dn.net/?f=1%5C%20kg%20%3D%202.2%5C%20lb)
![1\ lb = 0.454\ kg](https://tex.z-dn.net/?f=1%5C%20lb%20%3D%200.454%5C%20kg)
Required
- Convert 6 lb to kg
- Convert 11kg to lb
To solve for (a), we make use of the second conversion unit:
![1\ lb = 0.454\ kg](https://tex.z-dn.net/?f=1%5C%20lb%20%3D%200.454%5C%20kg)
Multiply both sides by 6
![6 * 1\ lb = 0.454\ kg * 6](https://tex.z-dn.net/?f=6%20%2A%201%5C%20lb%20%3D%200.454%5C%20kg%20%2A%206)
![6\ lb = 2.724\ kg](https://tex.z-dn.net/?f=6%5C%20lb%20%3D%202.724%5C%20kg)
<em>Hence, a 6lb backpack weighs 2.724kg</em>
Solving (b): 11 kg to lb
Here, we make use of the first conversion unit
![1\ kg = 2.2\ lb](https://tex.z-dn.net/?f=1%5C%20kg%20%3D%202.2%5C%20lb)
Multiply both sides by 11
![11 * 1\ kg = 2.2\ lb * 11](https://tex.z-dn.net/?f=11%20%2A%201%5C%20kg%20%3D%202.2%5C%20lb%20%2A%2011)
![11\ kg = 24.2\ lb](https://tex.z-dn.net/?f=11%5C%20kg%20%3D%2024.2%5C%20lb)
<em>Hence, the cat weighs 24.2lb</em>
To find the perimeter<span> of a polygon, take the sum of the length of each side. The formula for </span>perimeter<span> of a triangle would be the sum of the three side lengths (a +b+c). In the case, where it is a regular polygon, the perimeter would be 3 times the side length. Hope this answers the question.</span>
You get a negative number
-3 + (-10) = -13