The answer is C i believe, always remember to add alike terms.
1/9 + 1/2 = 1/x
Let x = length of time it will take both hoses to work together
Multiply both sides by 18x.
2x + 9x = 18
10x = 18
x = 18/10
x = 9/5
x = 1.8 hours
In other words, if both hoses work together, the pool can be filled in 1 hour and 48 minutes.
Answer:
The missing reason is Subtraction Property of Equality.
Step-by-step explanation:
⇒ (Given)
On Solving we get;
Multiplying 2 on both side we get;
![2(\frac{3}{2}x+5)=-4\times2\\\\2\times \frac{3}{2}x+5\times 2=-4\times 2](https://tex.z-dn.net/?f=2%28%5Cfrac%7B3%7D%7B2%7Dx%2B5%29%3D-4%5Ctimes2%5C%5C%5C%5C2%5Ctimes%20%5Cfrac%7B3%7D%7B2%7Dx%2B5%5Ctimes%202%3D-4%5Ctimes%202)
⇒ (Multiplication Property of Equality)
Now Subtracting Both side by 10 we get;
![3x+10-10=-8-10](https://tex.z-dn.net/?f=3x%2B10-10%3D-8-10)
⇒ (Subtraction Property of Equality)
Now Dividing both side by 3 we get;
![\frac{3x}{3} = \frac{-18}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B3x%7D%7B3%7D%20%3D%20%5Cfrac%7B-18%7D%7B3%7D)
⇒ (Division Property of Equality)
Hence the missing reason is Subtraction Property of Equality.