a cup of coffee contains 150 milligrams of caffeine. if caffeine is eliminated from the body at a rate of 14% per hour, how long will it take for half of this caffeine to be eliminated from a person's body? round your answers to the nearest hour

A. 7 hours B. 6 hours C. 5 hours
D. 4 hours​

Answers

Answer 1

Answer:

Step-by-step explanation:

14% of 150 mg = 0.14* 150 = 21 mg

21 mg will be eliminated  from our body in an hour

150/21 = [tex]7\frac{3}{21}[/tex]

  = 7 hours { rounding to the nearest}


Related Questions

Pls Help anyone. Ill will give brainliest and you will get 45 points pls anyone pls ㏒㏒㏒㏒㏒㏒

Answers

The answer is E: (b-c)(a+c)

Favian received a $100 gift card to a clothing store.
Using only the gift card, he was able to purchase n
sweaters that cost $32 each and 1 belt for $20. If there
was no tax on the sweaters and belt, which of the
following must be true?

Answers

Answer:

32n = 100 - 20

n = 2.5

he purchased 2 sweaters

Step-by-step explanation:

32n = 100 - 20

If Favian originally had $100 but spent $20 on a belt, he only had 80 left, meaning that 80 = 32n which means that he was able to but 2 sweaters and got $16 back. Therefore the formula would be 32n = 100 - 20

The formula for the number of sweaters will be 32n = 100 – 20.

What is the linear system?

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

Favian received a $100 gift card to a clothing store.

Using only the gift card, he was able to purchase n sweaters that cost $32 each and 1 belt for $20.

If there was no tax on the sweaters and belt,

Then the equation will be

32n + 1 x 20 = 100

    32n + 20 = 100

             32n = 80

                 n = 2.5 ≈ 2

If Favian originally had $100 but spent $20 on a belt, he only had 80 left, meaning that 80 = 32n, which means that he was able to but 2 sweaters and got $16 back.

Therefore, the formula would be 32n = 100 – 20.

More about the linear system link is given below.

https://brainly.com/question/20379472

#SPJ2

PLEASE ANSWER At a basketball game, 75% of people attending were supporting the home team, while 25% were supporting the visiting team. If 750 people attending the game supported the home team, what was the total number of people attending the game?

Answers

75% = 0.75

750 people / 0.75 = 1,000 people

There were 1,000 total people attending the game

Answer:

1,000 people

Step-by-step explanation:

At a basketball game, 75% of people attending were supporting the home team, while 25% were supporting the visiting team. If 750 people attending the game supported the home team, the total number of people attending the game was 1,000 people.

75% = 3/4 or 0.75

25% = 1/4 or 0.25

We need to find what 25% is.

75/3=25

75% = 0.75

750 people / 0.75 = 1,000 people

Therefore, there were 1,000 people at the game.

The first term of an AP is -76 and the sum of first 45 terms is -9360. Which of the following is the last term of this AP​

Answers

Answer:

- 340

Step-by-step explanation:

The sum to n terms of an AP is

[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] ( a + l ) → a is the first term and l the last term

Here a = - 76 and [tex]S_{45}[/tex] = - 9360 , thus

[tex]\frac{45}{2}[/tex] ( - 76 + l ) = - 9360

22.5(- 76 + l) = - 9360 ( divide both sides by 22.5 )

- 76 + l = - 416 ( add 76 to both sides )

l = - 340 ← the last term in the sequence

88 POINTS WILL MARK BRAINLIEST!

Answers

Answer:

m Angle PQS = 7x -6

m Angle SQR = 4x +15

m Angle PQS + m Angle SQR =11x +11 = m Angle PQR

Angle PQR +Angle PQT = 180⁰

=) 11x +11 =180⁰

=) 11x =169⁰

=) x = 169/11 = 15.3

Answer:

m Angle PQS = 7x -6

m Angle SQR = 4x +15

m Angle PQS + m Angle SQR =11x +11 = m Angle PQR

Angle PQR +Angle PQT = 180⁰

=) 11x +11 =180⁰

=) 11x =169⁰

=) x = 169/11 = 15.3

Step-by-step explanation:

Give brainliest

Classify the number of seats in different classrooms in the school.

a.Qualitative and Continuous
b.Quantitative and Continuous
c.Quantitative and Discrete
d.Qualitative and Discrete

Answers

Answer:

a.Qualitative and Continuous

Step-by-step explanation:

where are my smart people at help please

Answers

Answer:

3x+2

Step-by-step explanation:

q(x) plus f(x) is the same as (x+1) plus (2x+1), so:

1x+1

2x+1

------------

3x+2

Hope this helps!

Answer:

i think its

q(x) + f(x) = 3x+2

What expression is equivalent to -7x+4+3x

Answers

Answer:

[tex]- 4x + 4[/tex]

Step-by-step explanation:

[tex]-7x + 4 + 3x \\-7x + 3x + 4 \\- 4x + 4[/tex]

f(d) = 4d2
d
f(d)
-2
-1
0
1

Answers

Answer:

F= -103/-4d^4+d

Step-by-step explanation:

fd=4d2dfd−2−101

Step 1: Add -4d^4f to both sides.

df+−4d4f=4d4f−103+−4d4f

−4d4f+df=−103

Step 2: Factor out variable f.

f(−4d4+d)=−103

Step 3: Divide both sides by -4d^4+d.

f(−4d4+d)

−4d4+d

=

−103

−4d4+d

f=

−103

−4d4+d

A car is travelling 300 km along a motorway in 10 800 seconds. How fast is it travelling in:
a) km/s
b) km/h
c) m/s?

Answers

100 km/h . pretty sure

What is the answer to 45 − (−28) =

Answers

Answer: 73

Step-by-step explanation:

45 - (-85) = 73

Hope this helps

plz mark brainlest

Step-by-step explanation:

You can also write it as 45+28.

In English, a double negative is when two negative words are used in the same sentence.

A double negative in Math is when you have a scenario like this. For example, 1-(-1) is also equal to 1+1.

So 45+28 is 73.

Hope it helps!

What equation is ALWAYS TRUE?

Answers

Answer:

2

Step-by-step explanation:

I think the one u choose was right!.

What is 75% of 140?

Answers

ANSWER: 105

EXPLANATION: 140 * .75 = 105

Make sure to multiply with a decimal in the front for the percentage.

Hope this helps.

If you make $2,000 a month, how much will you make in 5 years?

Answers

Answer:

120,000

Step-by-step explanation:

2,000•12=24,000

24,000•5=12,000

Please help! I'll give brainiest to the first person who is correct!!

Answers

Answer:

7. is not congruent 8. is congruent and 9. is congruent

Step-by-step explanation:

hope this helps

Thank you if you do help!:,)

Answers

Answer:

B

Step-by-step explanation:

PEMDAS

8 + 2^3 x 5

8 + 8 x 5

8 + 40

48

A liquid storage container is being filled at a constant
rate. The container is being filled at a rate of ġ gallon
minute.
How many gallons of liquid will be in the container in 4
minutes?
1
per
1. Unit rate:
gallons
O 12 gallons
3
gallons (4) gallons
minutes (4)
1 minute
16
gallons
3
O 48 gallons
2. Find the equivalent rate for 4 minutes.

Answers

Answer:

16/3

Step-by-step explanation:

Answer:

c c c c c c cc

Step-by-step explanation:

2 Equivalent Expressions
4x + 20

Answers

Hello, the correct answer is already 4x + 20, but if you want the answer in a factor it will be 4(x + 5). Hope this helps. Please mark as brainliest!!

Nancy bought an extra-large bag of 1,288 beads to make necklaces. When she got home, she found another bag with 784 beads in it. If she uses all of the beads and uses 56 beads per necklace, how many necklaces can she make? A. 14 B. 504 C. 23 D. 37

Answers

Answer:

D. 37

Explanation:

Add the bags of beads she bought to the ones she found (1288+784)

Then divide the total by 56(2072÷56)

How is solving for speed similar to solving for time?
They both require that two numbers be added.
They both require that two numbers be subtracted.
They both involve writing a rate.
They both use the same units of measure,

Answers

Answer:

They both involve writing a rate.

Step-by-step explanation:

i got it right

Answer:

It's C.

How I got this answer:

I Knew that since they both required two numbers being added and subtracted that if it's being added and subtracted that it would involve a rate.

( Please correct me  me if I'm wrong or I was too late to answer :} )

Please help this is the last question on my test!! What is the approximate area of a circle with a radius of 4 feet? Use 3.14

Answers

Answer:

50 feet²

Step-by-step explanation:

r = 4 feet

Area of circle = [tex]\pi[/tex] r²

                      = 3.14 * 4 * 4

                      = 50.24 = 50 feet²

Answer:

50.24 square feet

Step-by-step explanation:

area = π[tex]r^{2}[/tex]

area = 3.14 x 4ft

area = 50.24[tex]ft^{2}[/tex]

D is the midpoint of C. E has coordinates (-3,-4), and D has coordinates (7,5). Find the coordinates of
C.
The coordinates of Care

Answers

Answer:

i need a pic to answer

Step-by-step explanation:

sorry

-k+3(4k-1)+2 simplify

Answers

Answer:

11k -1

Step-by-step explanation:

- k + 3(4k - 1) + 2

-k +12k - 3 +2

11k -1

Solve for n. (4n+6)+(2n)+60

Answers

Answer:

n = 27

Step-by-step explanation:

Simplify the expression
7(8g+ 9f – 6h)

Answers

Answer:

below

Step-by-step explanation:

[tex]7 ( 8g + 9f - 6h) \\7*8g + 7*9f - 7*6h \\56g + 63g - 42h[/tex]

63f + 56g - 42h

you distribute the 7 to all of the numbers

Find the value of x and YZ if Y is between X and Z. Draw, label, set up the equation and solve each for :
4. XY = 5x, YZ=x, and XY=25
5. XY = 12, YZ=2x, and XZ = 28
7. XY=2x + 1. YZ = 6x, and XZ=81
6. XY = 4x. YZ=3x, and XZ = 42

Answers

Step-by-step explanation:

We need to find the value of x for all problems if Y is between X and Z.

For all cases, XZ = XY+YZ

4. XY = 5x, YZ=x, and XZ=25

Putting all values

25 = 5x + x

25 = 6x

[tex]x=\dfrac{25}{6}[/tex]

5. XY = 12, YZ=2x, and XZ = 28

28 = 12 + 2x

x = 8

6.  XY = 4x. YZ=3x, and XZ = 42

XZ = XY+YZ

42 = 4x + 3x

42 = 7x

x = 6

7. XY=2x + 1. YZ = 6x, and XZ=81

XZ = XY+YZ

81 = 2x + 1 + 6x

80 = 8x

x = 10

The table shows the side lengths and perimeters of four squares.

Side Length (x)
Perimeter (y)
4.5
18
8.5
34
10.25
41
13.75
55

Which equation represents the relationship between the side length, x, and the perimeter, y?

Answers

Answer:

the perimeter of square is 4 times of side of that square.

Explanation:

Side length (x) perimtr (y)

4.5 4 × 4.5 =18

8.5 4 × 8.5 =34

10.25 4 × 10.25 =41

13.75 4 × 13.75= 55

thus

y = ( x)2

Answer: ths answer is B

Step-by-step explanation:

Which is a simplified version of the following expression?
3y - 2y +6(-2y + 4)]

Answers

Answer:

3y - 2y = y6 x -2y = -12y6 x 4 = 24y -12y = -11y

final answer

-11y + 24

–8(4 + 3x) = -200
Idk what this is i need help

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{x = 7}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{ - 8(4 + 3x) = - 200}[/tex]

Distribute -8 through the parentheses

[tex] \longrightarrow{ \sf{ - 32 - 24x = - 200}}[/tex]

Move 32 to right hand side and change it's sign

[tex] \longrightarrow{ \sf{ - 24x = - 200 + 32}}[/tex]

The negative and positive integers are always subtracted but posses the sign of bigger integer

[tex] \longrightarrow{ \sf{ - 24x = - 168}}[/tex]

Divide both sides by -24

[tex] \longrightarrow{ \sf{ \frac{ - 24x}{ - 24} = \frac{ - 168}{ - 24}}} [/tex]

Calculate

[tex] \longrightarrow{ \sf{x = 7}}[/tex]

Hope I helped !

Best regards! :D

Larry ran 4/5 of the way around the track before slowing down to a walk. What percent of the track did he run? *​

Answers

Answer:

80%

Step-by-step explanation:

4 divided by 5 = 0.8

0.8 x 100 = 80%

The percentage Larry ran around the track = 80%  

He ran 4/5 of the way around the track before slowing down for a walk.

This means he ran 4 parts of the whole 5 parts of the track. He walks the remaining 1 part around the track.

Therefore, the percentage he ran can be calculated below

% he ran the track = 4 / 5 of 100

% he ran the track = 4 / 5 × 100 = 400 / 5 =  80%

The percentage he ran around the track  = 80%

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