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7nadin3 [17]
2 years ago
5

A patient ingests 100 milligrams of a certain drug which dissolves away at a constant rate of 20% per hour. How long will it tak

e before there are only ten milligrams left?
Mathematics
2 answers:
creativ13 [48]2 years ago
6 0

Answer:

Answer:

The correct answer is 15.3 hours

Step-by-step explanation:

See the attached image below to understand why this is correct.

Strike441 [17]2 years ago
4 0

100×20%=20mg is dissolved in one hour

20mg will be dissolved away which mean it will take 4 hours for 80mg to dissolve way

since it takes 20mg 1hour it will take 10mg half and hour or 30min to dissolve away which gives us a total of 4.5 hrs to dissolve 90mg away and leave us with 10mg

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KonstantinChe [14]
The answer is. 187918
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3 years ago
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marta [7]

Answer:

Answer D 88%

Step-by-step explanation:

To figure this question out we first need to find 1% of 25, which is .25 and then we need to find what percentage 3 is of 25, and so 12 x .25 = 3 which means 3 is 12% of 25, now just subtract it from 100% and we get 88%

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2 years ago
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svetlana [45]
2x+8y=20;y=2
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2x+16=20
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6 0
3 years ago
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vagabundo [1.1K]

Answer:

1/10

Step-by-step explanation:

There are two numbers less than 3 (1 and 2), and one number greater than 4 (5).

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6 0
3 years ago
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vfiekz [6]

Answer:

2.33

Step-by-step explanation:

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