Answer:
75years
Explanation:
Let the Father's age be represented by 2x
Let the Son's age be represented by x
Five years ago;
Man's age will be = 2x - 5
Son's age will be = x - 5
If the ratio of their ages five years ago was 9:4, then;
2x - 5/x-5 = 9/4
4(2x - 5) = 9(x - 5)
8x - 20 = 9x - 45
- Collect like terms
-20 + 45 = 9x - 8x
25 = x
Hence, the son's age = 25 years
If x = 25, the father's age (2x) will be 2 × 25 = 50years
The sum of their ages will be = 25years + 50years = 75years
When the patient who is nothing by mouth (NPO) (no food or fluids allowed) develops an adverse reaction to a new intravenous (IV) drug, then the nurse will take action like recording the reaction, stopping the further administration of the drug and notify the health care provider.
Nothing by mouth (NPO) is a period of time in which the patient is advised not to eat or drink anything. Doctors suggest avoiding eating food or drinking water during the medical or surgical procedure to ensure the correct report or successful operation of the patient.
NPO is a common practice, and it instructs that patients should not take solid and liquid before receiving general anaesthesia.
Learn more about the NPO here
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The light will not light up,
; the circuit is incomplete
Also I consider this physics and electronics
D. He controlled variables by studying one or two traits at a time
KCl + AgNO
3
→
KNO
3
+
AgCl
Explanation:
Formulas for the compounds:
KCl
:
potassium chloride (reactant)
AgNO
3
:
silver nitrate (reactant)
KNO
3
:
potassium nitrate (product)
AgCl
:
silver chloride (product)
KCl + AgNO
3
→
KNO
3
+
AgCl
If the compounds are in aqueous solution, then their physical states could be added.
KCl(aq) + AgNO
3
(
aq
)
→
KNO
3
(
aq
)
+
AgCl(s)