2. A nutritionist wants to collect data on how much caffeine the average American drinks per day. She has the following ideas for how she could obtain a sample:
a. Ask the first 20 adults who arrive at a grocery store after 10:00 a.m. about the average amount of caffeine they consume each day.
b. Every 30 minutes, ask the first adult who comes into a coffee shop about the average amount of caffeine they consume each day.​

Answers

Answer 1

Answer:

B

Step-by-step explanation:

If you start to ask after 10:00 am, a lot of people isn't drinking caffeine. And, were trying to figure out the average.


Related Questions

Write a story about temperatures that this expression could represent:
27 + (–11)

Answers

At noon, the temperature was 27 degrees. At night, the sun went down and the temperature decreased by 11 degrees.

Evaluate 52. Check all that apply.
The base is 5.
The exponent is 2.
The expanded form is 2 × 2 × 2 × 2 × 2.
The expanded form is 5 × 5.
52 = 25
52 = 32

Answers

Answer: a, b, d, e

Step-by-step explanation: just got it right on edge 2021

Answer:

a,b,d,e

Step-by-step explanation:


During a theater matinee show, the power went out. The theater manager refunded the
ticket price to everyone attending. Let n represent the number of people attending the
show. Let r represent the total amount of money refunded. Wite an equation to represent
the amount of money refunded.
Ticket Price Board
Adults
$13.00
Children & Seniors
$11.00
Matinees: All Ages
$9.00

Answers

Answer:

r = 9n

Step-by-step explanation:

Ticket price of each tickets for the matinee show = $9 for all ages

If the number of persons who attended the matinee show = n

And the total amount refunded = r

Then the expression representing total amount refunded 'n' in terms of 'r' will be,

Total amount refunded = Price of ticket × Number of tickets

                                  r  = 9n

A coach buys a uniform and basketball for each of the 15 players on the team. Each
basketball cost $9.50. The coach spends a total of $450 for uniforms and basketballs.
What is the cost, in dollars, of each uniform?
$

Answers


Uniforms: $20.5

450 divided by 15 = 30
Each person on the basketball team got $30 worth of stuff.
If the basketball cost $9.50: 30-9.50=20.5
This means that each of the uniforms are $20.5

Hope this helps! Have a great day :)

After 14 years, I shall be three times as old as I was 4 years ago. What is my present age?

Answers

Answer:

Present age = 13 years

Step-by-step explanation:

Let the present age be x years.

14 years after age = (x + 14) years

4 years ago age = (x - 4)

According to the given information:

14 years after age = 3 times 4 years ago age

x + 14 = 3(x - 4)

x + 14 = 3x - 12

14 + 12 = 3x - x

26 = 2x

x = 26/2

x = 13 years

Thus, the present age is 13 years

Please Help 1 24 + r ; r = 9 2 2a + 3 ; a = 10 3 Bc + 12.3 ; b = 9, c = 4 4 p ÷ q ; p = 24, q = 8 5 4c - 7.8 ; c = 4 6 c - a ; a = 3, c = 17 7 a ÷ 2c ; a = 20, c = 2 8 3x - 14 ; x = 5 9 1.5 + y² ; y = 6 10 t/5 + 6 ; t = 45

Answers

Answer:

See solution below

Step-by-step explanation:

Given the following expression

1) 24+r

If r = 9

24 + r = 24+9

= 33

2) 2a+3

If a = 10

Substitute

2(10)+3

= 20+3

= 23

3) BC+12.3

b = 9

c = 4

Substitute

= 9(4)+12.3

= 36+12.3

= 48.3

4) p÷q

Given p = 24 and q = 8

p÷q = 24÷8

p÷q = 3

5) 4c-7.8

If c = 4

Substitute

= 4(4)-7.8

= 16-7.8

= 8.2

6) c-a

a = 3

c = 17

Substitute

= 17-3

= 14

Hence c-a = 14

7) a ÷ 2c ; a = 20, c = 2

Substitute

a÷2c

= a/2c

= 20/2(2)

= 20/4

= 5

8) 3x-14

If x = 5

Substitute

= 3(5)-14

= 15-14

= 1

9) 1.5 + y² ; y = 6

Substitute

= 1.5+6²

= 1.5+36

= 37.5

10) t/5 + 6 ; t = 45

substitute the value of t given into the expression

= 45/5 + 6

= 9 + 6

= 15


Which pairs of equations are parallel?
a) y = 3x + 4 and y = 3x+1
b) y =- 3x + 4 and y = 3x + 1
c) y=x-1 and y = x+1
d) y = 2x + 3 and y = 2x + 1

Answers

Answer:

x by 1 times 15 to the third power

Step-by-step explanation:

mrs. kelly asked her students to plot the number of books they read over summer. Using the dot plot, how many students answered the question?

Answers

Answer:

18

Step-by-step explanation:

Add all the dots. 2+1+3+2+6+3+1=18

additive inverse of 3x - 6.

Answers

Answer:-3

Step-by-step explanation:

2 x + 6 = 10
solve for x​

Answers

Answer:

x=2

Step-by-step explanation:

2x2=4

4+6=10

Answer:

x=2

Step-by-step explanation:

with questions like this do the inverse

10-6=4

4÷2=2

2=x

i hope this helped xx

Bryans gocket team is purchasing jersys. The company charges $250 for the onetime set-up fee and $23 for each printed jersey which expression repressents the total cost of x number for the team

Answers

Given:

The company charges $250 for the onetime set-up fee and $23 for each printed jersey.

To find:

The expression that represents the total cost of x number for the team.

Solution:

We have,

Fixed charges = $250

Additional charges = $23 per printed jersey

Let x be the number of printed jersey. Then,

Additional charges = $23x

Total chargers = Fixed charges + Additional charges

                        = $(250 + 23x)

Therefore, the expression for the total charges is $(250 + 23x).

help QUICK I HAVE 17 MIN LEFT WILL GIVE BRAINLIEST​

Answers

Answer:

5 : 9

Step-by-step explanation:


Five whole numbers are written in order.
4 6 x y 10
The mean and median of the five numbers are the same.
Work out the values of x and y.

Answers

x = 7
y = 8
As 7 is the median as it would be the middle number and the mean would now be 7 as well

What is a decimal that is equivalent to the fraction 8/10
? Enter the answer in the box.

Answers

Answer:

0.8

Step-by-step explanation:

Answer:

.8

Step-by-step explanation:

A TV has a listed price of $ 796-99 before tax. If the sales tax rate is 6.75% find the total cost of the TV with sales tax included
Round your answer to the nearest cent, as necessary

Answers

Answer:

$850.79

Step-by-step explanation:

Assuming "$ 796-99" meant $796.99

796.99 increase 6.75% =

796.99 × (1 + 6.75%) = 796.99 × (1 + 0.0675) = 850.786825

Please help me???????

Answers

Answer:

i can't see it

Step-by-step explanation:

Which equation in point-slope form describes the line that passes through the point (4,-5) and is perpendicular to
the line represented by
- 7x + 2y = 14?

Answers

9514 1404 393

Answer:

  D  y +5 = -2/7(x -4)

Step-by-step explanation:

The point-slope form is ...

  y -k = m(x -h) . . . . . . line with slope m through point (h, k)

You're given (h, k) = (4, -5), so the equation will be of the form ...

  y +5 = m(x -4) . . . . for some slope m

This form eliminates the first two choices.

__

The slope of the given line is the coefficient of x when solved for y:

  2y = 7x +14

  y = 7/2x +7  . . . .  slope is 7/2

The perpendicular line will have a slope that is the opposite reciprocal of this, ...

  -2/7 . . . . slope of perpendicular line

This is the slope shown in choice D:

  y +5 = -2/7(x -4)

D

Step-by-step explanation:

please help 10 points

Answers

Answer:

Sana di ten points

Step-by-step explanation:

B

#carryonlearning

The answer would be B

Andy is buying a car
he negotiated a 7% decrease on a £6 500 car
he will pay the full balance in 12 equal month payments
calculate the amount paid each month

Answers

Answer:

£503.75 per month

Step-by-step explanation:

7% decrease on a £6,500 car

= 7% of 6,500

= 7/100 * 6,500

= 0.07 * 6500

= £455

Amount of the car = £6,500 - £455

= £6,045

he will pay the full balance in 12 equal month payments

Amount paid each month = £6,045/12 months

= £503.75 per month

Answer:

7% decrease on a £6,500 car

= 7% of 6,500

= 7/100 * 6,500

= 0.07 * 6500

= £455

Amount of the car = £6,500 - £455

= £6,045

he will pay the full balance in 12 equal month payments

Amount paid each month = £6,045/12 months

= £503.75 per month

Step-by-step explanation:

Factorise x + 5x + 6

Answers

Answer:

6x+6

Step-by-step explanation:

Combine like terms:

x + 5x +6

6x+6

6x + 6
Then factorise:
6(x+1)

Which expression represents a factorization of 32m + 56mp?


A 8(4m + 7p)


B 8(4 + 7)mp


C 8p(4 + 7m)


D 8m(4 + 7p)

Answers

Answer:

D 8m(4 + 7p)

Step-by-step explanation:

The GCF of 32 and 56 is 8.

m and mp have m in common, so you can factor out 8m.

32m + 56mp = 8m(4 + 7p)

Answer: D 8m(4 + 7p)

Answer: D, 8m(4+7p)

Step-by-step explanation:

8m times 4=32m

8m times 7p=56mp

what are two fractions that equal -7/10?

Answers

Answer:

-14/20

-21/30

Step-by-step explanation:

-7/10

-7x2=-14 and -10x2=-20

-14/20

-7/10

-7x3=-21 and -10x3= -30

-21/30

How many square meters are enclosed in the track?

Answers

Answer:

For this case using the figure attached we can separate the total area in 3 parts.

For this case  and represent the area for a semicircle and the A2 represent the area for a rectangular figure.

We can find the individual areas like this:

For the rectangular shape we have:

And the total area would be:

Replacing we got:

Step-by-step explanation:

Answer:

for me on my test its 40L 60m and so the length time width will get you 2.4k, 2400 square meters

Step-by-step explanation:

60x40

Help what do I fill in!?!

Answers

Answer:

6 AND 8

Step-by-step explanation:

Geometry
Help please

Answers

Step-by-step explanation:

14x+y=60

4x-6= 10

4x= 16

x= 4

56+y=60

y= 4

i need to find the 9th term of this sequence

Answers

9514 1404 393

Answer:

  26,244

Step-by-step explanation:

The sequence is geometric with a common ratio of -3. The general term is ...

  an = (a1)r^(n-1)

The first term is 4, so we have ...

  an = 4·(-3)^(n-1)

For n=9, we find the 9th term to be ...

  a9 = 4·(-3)^(9-1) = 4·3^8

  a9 = 26,244

_____

Additional comment

When -3 is raised to an even power, the sign of the product is positive, the same as 3 raised to that power.

plzzzz helppp I need answer ​

Answers

Answer:

[tex] \huge \: 250 \: mL[/tex]

Step-by-step explanation:

tips and formulas:1 L=1000mLgiven:amount:1 L 500mLdistributed in 6 glasseslet's solve:

1 L =1000 mL

1L 500 mL =1000+500 mL

=1500 mL

juice in 6 glasses 1500 mL

juice in 1 glass 1500÷6 mL

=250 mL

i need help with geometry!

Answers

Step-by-step explanation:

If m is parallel to n and one of its angle is 25

Therefore, the vertically opposite angle to angle of 25 is also equal to 25

Now, we have to find x

Therefore, x=180-25 ( interer angles on the same side of the transversal so addition of both angles is 180)

Therefore, x =155

After a 60% reduction, you purchase a new sofa drink machine on sale for $312.
What was the original price of the sofa drink machne?

Answers

Search up 0.60 x 312= 187.2, 187.2 + 312 = 499.2

Tommy went to the mall and bought a shirt for $10 and a pair of pants for $30. Their was a sales tax of 7% on his purchase. How much did he pay in total?

Answers

Answer:

42.8

Step-by-step explanation:

(10+30)*1.07=42.8

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