A 4.5 kg cat requires medication at a dose rate of 5 mg/kg once daily for the next 7 days. The tablets are available in 10 mg strength. How many tablets are required? (Calculate to the nearest whole tablet.)

A. 20 tablets B. 7 tablets C. 16 tablets D. 3 tablets

Respuesta :

Answer:

Approximately 16 tablets of medicine

Step-by-step explanation:

Based on the information above , we can use a Rule of Three to first figure out how many mg the cat would need to ingest per day.

[tex]\frac{5mg}{1kg} = \frac{x}{4.5kg}[/tex]

[tex]\frac{5mg*4.5kg}{1kg} = 22.5mg[/tex]

Now we see that the cat needs to take a daily dose of 22.5mg. Since the Tablets come at a strength of 10 mg per tablet then,

[tex]22.5 / 10 = 2.25[/tex]

The cat would need to take 2.25 tablets per day. Since she needs to take the dose for the next 7 days then,

[tex]2.25 * 7 = 15.75[/tex]

She would need to take approximately 16 tablets of medicine during the week .

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