The like terms are 12 and 5, so you have to subtract 5 from both sides.
12 < x + 5
-5. -5
7 < x
We can just switch it around so x is in the left side.
x > 7
Hello! Your answer is B, 10 minutes.
Say the x = minutes taken to do the job. You can set up an equation like this to solve this.
![\frac{1}{15} x + \frac{1}{30} x = 1](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B15%7D%20x%20%2B%20%5Cfrac%7B1%7D%7B30%7D%20x%20%3D%201)
This is representative of the situation. The fractions each represent <u>how much each person does in a minute</u>, and when they're multiplied by x, that's <u>how much of the project they get done</u> based off of the minutes they work together on the job. Add the two together, and you get <u>how much of the project is finished in x amount of time</u>. Set it equal to 1, as you are looking for 100% completion.
Once you have this equation, find a common denominator, add, and solve.
![\frac{1}{15} x + \frac{1}{30} x = 1](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B15%7D%20x%20%2B%20%5Cfrac%7B1%7D%7B30%7D%20x%20%3D%201)
![\frac{2}{30} x + \frac{1}{30} x = 1](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B30%7D%20x%20%2B%20%5Cfrac%7B1%7D%7B30%7D%20x%20%3D%201)
![\frac{3}{30}x = 1](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B30%7Dx%20%3D%201)
![\frac{1}{10}x = 1](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B10%7Dx%20%3D%201)
![x = 10](https://tex.z-dn.net/?f=x%20%3D%2010)
Therefore, it will take them 10 minutes to do the job together.
Hope this helps!
What is the question though?? and what are the answer choices??
Answer: 27.2
Step-by-step explanation:
A squared + B squared = C squared 22 is A squared and 16 is B squared and C squared is the hypotenuse and that is what we are figuring out
22squared= 484 and 16 squared=256 484+256=740 and 27.2 squared is 740 I hope this helps
Answer:
A is the Answer.
Step-by-step explanation:
You multiply x with 2x ( Gives you 2x^2 ) then -1 with 2x ( Gives you -2x ) then -8 with x ( Gives you -8x ) then -1 with-8 ( Gives you +8 ), finally you add the two x's ( not x^2 ). Your fibal answer will be 2x^2 - 10x +8.
Hope this helps.