If your looking for the positive it’s 58
ANSWER
Paul and Matt will take
![9.9 \: \: hours](https://tex.z-dn.net/?f=9.9%20%5C%3A%20%5C%3A%20hours)
to install the floor working together.
EXPLANATION
First, calculate Paul's rate, which is
![= \frac{1}{18}](https://tex.z-dn.net/?f=%20%3D%20%5Cfrac%7B1%7D%7B18%7D%20)
Next, calculate Matt's rate, which is,
![= \frac{1}{22}](https://tex.z-dn.net/?f=%20%3D%20%5Cfrac%7B1%7D%7B22%7D%20)
Let us assume that, Paul and Matt took
![x \: hours](https://tex.z-dn.net/?f=x%20%5C%3A%20hours)
to do the work together.
Then, the rate of working together is,
![= \frac{1}{x}](https://tex.z-dn.net/?f=%20%3D%20%5Cfrac%7B1%7D%7Bx%7D%20)
Now, add the individual rates and equate to the rate of working together to form an equation that will help us solve for x.
![\frac{1}{18} + \frac{1}{22} = \frac{1}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B18%7D%20%2B%20%5Cfrac%7B1%7D%7B22%7D%20%3D%20%5Cfrac%7B1%7D%7Bx%7D%20)
Simplify the left hand side
![\frac{11 + 9}{198} = \frac{1}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B11%20%2B%209%7D%7B198%7D%20%3D%20%5Cfrac%7B1%7D%7Bx%7D%20)
![\frac{20}{198} = \frac{1}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B20%7D%7B198%7D%20%3D%20%5Cfrac%7B1%7D%7Bx%7D%20)
We reciprocate both sides to get (You could have also done cross multiplication).
![\frac{198}{20} = \frac{x}{1}](https://tex.z-dn.net/?f=%20%5Cfrac%7B198%7D%7B20%7D%20%3D%20%5Cfrac%7Bx%7D%7B1%7D%20)
If your answer is 17, you've gotten the correct answer.
Answer:
The IV will run ![66.67 \ ml /hr](https://tex.z-dn.net/?f=66.67%20%5C%20ml%20%2Fhr)
Step-by-step explanation:
From the question we are told that
The mass of Magnesium sulfate is ![m_g = 30 \ g](https://tex.z-dn.net/?f=m_g%20%20%3D%20%2030%20%5C%20g)
The volume of the Magnesium sulfate ![V_R = 500ml](https://tex.z-dn.net/?f=V_R%20%20%3D%20500ml)
The rate at which the dose of the solution (Magnesium sulfate + Lactated Ringers. ) is infused is ![R = 4g/hr](https://tex.z-dn.net/?f=R%20%20%3D%204g%2Fhr)
The concentration of Magnesium sulfate in Lactated Ringers is mathematically evaluated as
![C_m = \frac{m_g}{V_R}](https://tex.z-dn.net/?f=C_m%20%20%3D%20%20%5Cfrac%7Bm_g%7D%7BV_R%7D)
substituting values
![C_m = \frac{30}{500}](https://tex.z-dn.net/?f=C_m%20%20%3D%20%20%5Cfrac%7B30%7D%7B500%7D)
![C_m = 0.06\ g/ ml](https://tex.z-dn.net/?f=C_m%20%20%3D%200.06%5C%20g%2F%20ml)
This implies that
0.06 g of Magnesium sulfate is in every 1 ml of Lactated Ringers
So 4 g of Magnesium sulfate is in x ml of Lactated Ringers
So
![x = \frac{4}{0.06}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B4%7D%7B0.06%7D)
![x = 66.67 \ ml](https://tex.z-dn.net/?f=x%20%3D%20%2066.67%20%5C%20ml)
So the amount of the solution in ml that is been infused in 1 hour is
![66.67 \ ml /hr](https://tex.z-dn.net/?f=66.67%20%5C%20ml%20%2Fhr)
Answer:
If it is number 5. the answer is 13
Step-by-step explanation:
take the largest number and subtract the smallest number.