Answer:
x = 2 is the correct answer :)
Answer:
If A = 8, B = 5
If A = 20, B = 3
Step-by-step explanation:
4x²(2x³ + 5x)
8x⁵ + 20x³
If A = 8, B = 5
If A = 20, B = 3
![5 - 6 = - 3k \\ - 1 = - 3k \\ \frac{1}{3} = k](https://tex.z-dn.net/?f=5%20-%206%20%3D%20%20-%203k%20%5C%5C%20%20-%201%20%3D%20%20-%203k%20%5C%5C%20%20%5Cfrac%7B1%7D%7B3%7D%20%20%3D%20k)
First, we combine the terms on the left side of the equation to simplify the equation. Then we divide both sides by -3. k then equals 1/3.
To check, we plug in our value for k into the original equation:
![5 - 6 = - 3k \\ 5 - 6 = - 3( \frac{1}{3} ) \\ - 1 = - 1](https://tex.z-dn.net/?f=5%20-%206%20%3D%20%20-%203k%20%5C%5C%205%20-%206%20%3D%20%20-%203%28%20%5Cfrac%7B1%7D%7B3%7D%20%29%20%5C%5C%20%20-%201%20%3D%20%20-%201)
We found k to be 1/3, so for every instance of k, we plug in 1/3. To simplify, we combine the left side to get -1, and we combine the right side to get -1.
Since -1 = -1, our solution is correct.
Answer:
x = w / (56 + r)
Step-by-step explanation:
Given the equation :
19x + rx= -37x + w ; find x
Collecting like terms
19x + rx + 37x = w
Factorizing x in the Left hand side
x(19 + 37 + r) = w
x(56 + r) = w
Therefore we can obtain x by dividing both sides by (56 + r)
x(56 + r) / (56 + r) = w / (56 + r)
x = w / (56 + r)
To find the unit rate, you would do 2.99 / 11.3 and get about 26 cents. So the unit rate would be 26 over 1 ( 26/1 ).
Hope I helped!
Marsh