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bulgar [2K]
3 years ago
10

Dr. Cohn is testing how long it takes for a person's body to process a new medicine. She observes that the medicine is used by t

he body at a constant rate. For her latest test, Dr. Cohn starts with 15 milligrams of the medicine and notes that 12.6 milligrams remain unused after 1 hour. Which equation could Dr. Cohn use to solve for p, the percentage of the medicine that is used in 1 hour? A. p100=12.615 B. p100=2.415 C. p15=1002.4 D. p15=10012.6
Mathematics
1 answer:
Lady_Fox [76]3 years ago
5 0

Answer:

the options were not copied correctly, option B could be correct but it is missing the division signs:

B. p / 100 = 2.4 / 15

the percentage of medicine used in 1 hour:

p / 100 = (15 - 12.6) / 15 = 2.4 / 15

p / 100 = 0.16

p = 0.16 x 100 = 16%

another option could be C but it would be missing the multiplication signs:

C. p x 15 = 100 x 2.4

p x 15 = 240

p = 240 / 15 = 16%

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Answer:

g =  - 3

Step-by-step explanation:

- 3 - 2g =  - 12 - 5g

<em>grou</em><em>ping</em><em> like</em><em> </em><em>ter</em><em>ms</em>

<em>- 2g + 5g =  - 12 + 3</em>

<em>3g =  - 9</em>

<em>divi</em><em>ding</em><em> </em><em>th</em><em>rough</em><em> </em><em>by</em><em> </em><em>3</em>

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