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Doss [256]
3 years ago
6

2. A nutritionist wants to collect data on how much caffeine the average American drinks per day. She has the following ideas fo

r 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.​
Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0

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.

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Bonnie volunteers to bring bags of candy to her child’s class for the Halloween party this year. She buys one bag of candy A con
lawyer [7]

Answer:

345 bags and would each have 2

8 0
3 years ago
From a point on a river, two boats are driven in opposite directions, one at 7 miles per hour and the other at 11 miles per hour
Bogdan [553]

Answer:

Both boats will be 54 miles apart after 3 hours.

Step-by-step explanation:

Given that from a point on a river, two boats are driven in opposite directions, one at 7 miles per hour and the other at 11 miles per hour, to determine how many hours they will be 54 miles apart, the following calculation must be performed :

54 / (11 + 7) = X

54/18 = X

3 = X

Therefore, both boats will be 54 miles apart after 3 hours.

4 0
3 years ago
1.A cube has side lengths of 15 inches, what is the surface area and volume of the cube? 2. A cube has side lengths of 8 inches,
omeli [17]

Answer:

Cube 1: 3375 cubed inches, 1350 inches squared.

Cube 2: 512 cubed inches, 384 inches squared.

Step-by-step explanation:

Formula for Volume of a Cube:  V=s^3\\ (s - side length)

Formula for Surface Area of a Cube: SA=6s^2 (s- side length)

<h3>For Cube 1:</h3>

The side length's 15 inches.

Find the volume:

V=15^3\\\rightarrow 15*15*15=3375\\\boxed {V=3375}

The volume of cube one is 3375in³.

Find the surface area:

SA=6(15)^2\\\rightarrow 15^2 = 225\\SA = 6 * 225\\\boxed {SA=1350}

The surface area of cube 1 is 1350in².

<h3>For Cube 2:</h3>

The side length's 8 inches.

Find the volume:

V=8^3\\\rightarrow 8*8*8= 512\\\boxed {V=512}

The volume of cube two is 512in³.

Find the surface area:

SA=6(8)^2\\\rightarrow 8^2=64\\SA=6*64\\\boxed {SA=384}

The surface area of cube 2 is 384in².

<em>Brainilest Appreciated. </em>

3 0
3 years ago
Any pointers on how to solve (-124) + 25 + (-87)
Elena-2011 [213]

|-124| + 25 + |-87|

124+25+87

236

8 0
3 years ago
27. In a school of 500 students, 125 like chess and 160 like badminton. 45 students like chess and badminton both. Find how many
ozzi

Answer:

170

Step-by-step explanation:

Add 160 and 45 and 125

Then subtract it to the total number of students

So 500 minus 330

5 0
4 years ago
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