Step-by-step explanation:
She made a sign error when multiplying and should have had 256 as a final answer.
When solving this equation, you get the answer as -43.5.
To solve, we simply need to collect like-terms and then rearrange to get x on one side and numbers on the other:
(8x - 20) - 16 = 10x + 51
8x - 36 = 10x + 51
- 8x
-36 = 2x + 51
- 51
-87 = 2x
÷ 2
-43.5 = x
I hope this helps!
Answer:
The approximate percentage is 25%.
Step-by-step explanation:
The initial population was = 12089 rounded off to 12000.
The final population is = 15025 rounded off to 15000.
Change in population = 
So, the approximate percent increase is =

= 25%.
We know that the pet Guinea gained 8 ounces in one month.
The question asks for the weight gained by Guinea in also one month.
Since both the described situation and the question both represent the same weight gained in the same duration, therefore, the required integer will be 8.
Answer: 8 ounces.