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aksik [14]
3 years ago
5

At the moment a certain medicine is injected, it’s concentration in the bloodstream is 120 milligrams per liter. From that momen

t forward, the medicine’s concentration drops 30% each hour. Write a function that gives the medicine’s concentration in milligrams per liter, c(t),t hours after the medicine was injected.
Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Answer:

C(t)=120(0.7)^t

Step-by-step explanation:

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A bag with 2 1/6 ounces of peanuts can make 2/5 of a jar of peanut butter. It can make a full jar with how many ounces of peanut
VladimirAG [237]
\bf \begin{array}{ccllll}
\begin{array}{llll}
peanut\\bat
\end{array}&
\begin{array}{llll}
peanut\\jar
\end{array}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
2\frac{1}{6}&\frac{2}{5}\\\\
x&1
\end{array}\implies \cfrac{2\frac{1}{6}}{x}=\cfrac{\frac{2}{5}}{1}\implies \cfrac{\frac{2\cdot 6+1}{6}}{\frac{x}{1}}=\cfrac{\frac{2}{5}}{\frac{1}{1}}

\bf \cfrac{\frac{13}{6}}{\frac{x}{1}}=\cfrac{2}{5}\cdot \cfrac{1}{1}\implies \cfrac{13}{6}\cdot \cfrac{1}{x}=\cfrac{2}{5}\implies \cfrac{13}{6x}=\cfrac{2}{5}\implies 13\cdot 5=2\cdot 6x
\\\\\\
65=12x\implies \cfrac{65}{12}=x\implies \boxed{5\frac{5}{12}=x}
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\cfrac{5\cdot 12+5}{12}\implies \cfrac{65}{12}
5 0
3 years ago
Please help me with my math please.?
Lady_Fox [76]

Answer:

x = 6, y = 0, m = -1
y = mx + b
0 = -1(6) + b
0 = -6 + b
6 = b
y = -1x + (6)

Step-by-step explanation:

^^^
See answer, pretty simple.

4 0
2 years ago
Read 2 more answers
6.5÷1345? please make the answer as short as posible.
solong [7]
6.5 ÷ 1345 = 0.0048 or 13/2690
4 0
3 years ago
Read 2 more answers
Please help due in 9 minutes
ad-work [718]

Answer:

1. b, 2. d, 3. c, 4. a.

7 0
3 years ago
Read 2 more answers
. Osteen has 32 marbles in his collection. 18 of his marbles are red, four are blue, and the rest are
nalin [4]

Answer: B

Explanation:  

32 marbles in total.

18 red marbles

4 blue marbles

10 green marbles.

You are asked what part of Osteen's marbles are red?

Probability = number of possible outcomes/total number of out outcomes.

P(Red) = 18/32 = 9/16

Both, 18 and 32 are divisible by 2 which gives 9/16. Since 9/16 cannot be reduced any further, we live it as it is. If you wanted to plug this into a calculator that would give 0.5625 which is 56.25% of Osteen's marbles are red.

P(Blue) = 4/32 = 1/8. 1/8 = 0.125 which 12.5% of his marbles are blue.

P(Green) = 10/32 = 5/16. 5/16= 0.3125 which 31.25 of his marbles are green. When you add 0.5625 + 0.125 + 0.3125 = 1 which is 100%. All probabilities add up to 1.

Hope this elaborate explanation helps.

6 0
2 years ago
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