Answer:
x = 12 hours
Step-by-step explanation:
If one pipe fills store pool in 12 hours in 1 hour will fill 1/12 of the pool
If one pipe fills a store pool in 6 hours in 1 hour will fill 1/6 of the pool
Let call " x " number of hours needed by the third pipe to fills the pool
then in 1 hour will fill 1/x
The three pipes working together in 1 hour will fill
1/12 + 1/6 + 1/x
Now we know that the three pipes take 3 hours to fill the pool then in 1 hour three pipes will fill 1/3 of the pool, therefore
1/12 + 1/6 + 1/x = 1/3
( x + 2*x + 12) /12*x = 1/3 ⇒ ( 3*x +12 )/ 12*x = 1/3
9*x + 36 = 12*x
- 3*x = - 36
x = 36/3
x = 12 hours
Equilateral triangle have the same side lengths. Perimeter = sum of all sides
(4x - 3) + (4x - 3) + (4x - 3) = 63
Remove parentheses
4x - 3 + 4x - 3 + 4x - 3 = 63
Combine like terms
12x - 9 = 63
12x = 72, x = 6
Solution: x = 6
24,805 I think that's the u mean but I'm not sure
Our basis is the value 25 mg/kg·day. The mg at the numerator is for the dosage, the kg at the denominator is for the weight of the patient and the day is for the time of dosage. First convert the weight from pounds to kg knowing that there are 2.2 lbs in every 1 kg.
Weight = 50 lbs* 1 kg/2.2 lbs = 22.73 kg
The solution for prescribed dosage is:
25 mg/kg·day * 22.73 kg = 568.25 mg/day
Since there are 24 hours in day, then the dosage should be administered 3 times because 24/8 = 3. It is mentioned that there should be 3 equal doses. Therefore, the dosage should be:
Dosage = 568.25/3 = 189.42 mg every 8 hours
Answer:
4.7 cm
Step-by-step explanation:
= 7 so side length of the square is 7
7 x 4 = 28 so perimeter is 28cm
28 - 9.3 - 9.3 = 9.4
9.4 / 2 = 4.7 cm
