Mathematics Middle School

Mollie wants to know which type of book is most commonly checked out by visitors of herlocal public library. She surveys people in the children’s reading room between 1:00 and 2:00 on a Saturday afternoon. Is Mollie’s sample ​representative​ of the population? (6.1)

a.) Yes, Mollie’s sample is representative because she went on a Saturday afternoon.
b.) Yes, Mollie’s sample is representative because she only asks people in the children’s section
of the library.
c.) No, Mollie’s sample is not representative because she went on a Saturday afternoon.
d.) No, Mollie’s sample is not representative because she only asks people in the children’s
section of the library.

Answers

Answer 1
It’s d, only going on Saturday afternoon would mean it doesn’t represent the majority of the population, so a is out, as well as b because the children aren’t the only population; there are adults at the library. Lastly, although the c could be an option, Saturday afternoon doesn’t have as much of an impact as only asking children so d is the best option.

Related Questions

WILL GIVE BRAINLIEST find the minimum value of the parabola y=x^2+7x+4
simplify your answer + write it as a proper fraction, improper fraction, or integer

Answers

I was just stuck on this but I need the

HELP ASAP!!!!!!! I NEED THIS SOON!!!

Answers

Answer:

y - 1 = 0 45 degreees 1 90 degrees x times 3y

Step-by-step explanation:

Trust

Item 5
What is the interquartile range of this data set?

Answers

Answer:

its 13.0

Step-by-step explanation:

brainliest please

What is the solution set for - 4x - 10 less than or equal to 2?

A x less than or equal to - 3
B x greater than or equal to - 3
C x less than or equal to 2
D x greater than or equal to 2

Answers

C x less than or equal to 2

i hope it's help:)

Solve the problems. Show your work.

1. Ben earns $12,800 a year. About 15% is taken out for taxes. How much is taken out for taxes?


2. Manuel found a wrecked Trans-Am that he could fix. He bought the car for 65% of the original price of $7200. What did he pay for the car?


3. A woman put $580 into a savings account for one year. The rate of interest on the account was 6½%. How much was the interest for the year in dollars and cents?


4. A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?


5. There are 28 students in a class. Sixteen of those students are men. What percent of the class are women?

Answers

Answer:

1 multiply 12,800 x 15 = 192,000 then divide 192,000 by 100 = 1,920 so the answer is $ 1,920

2 He paid $7200 for the wrecked car which is about 65% of the original price.

3Hence, interest over a year is $ 37.7 or 3770 cents.

4 The student answered 16 problems correctly on a math test that had 20 problems.

5 Total students in the class = 28

Number of students that are men = 16

Number of student that are women = 28 - 16 = 12

percentage of women in the class = 12 / 28 × 100

percentage of women in the class = 1200 / 28

percentage of women in the class = 42.8571428571

percentage of women in the class ≈ 42.9 %

Step-by-step explanation:

there's your answer bro hope it helps

There are 6 feet in 2 yards. How many yards are in 1 foot?

Answers

Answer:

0.3 yards lol

Step-by-step explanation:

it would be considered a fraction yet i have no clue what the fraction would be, but im pretty sure its 3/4

Answer:

0.3 yards

Step-by-step explanation:

[tex]\frac{1yd}{3ft} =1ft[/tex]

units (ft) cancel out:

[tex]\frac{1yd(1)}{3}[/tex]

= [tex]\frac{1yd}{3}[/tex]

= 0.333333333 yds

= 0.3 yds (rounded)

hope this helps!

By what number would you multiply each equation to clear denominators or decimals?
(Do not solve)

1/3z + 1/6 = 5 1/6

3.7 + 2.75k = 27.35

Answers

Answer:

i dont

know

Step-by-step explanation:

plot and label point z, then use a ruler to draw the rectangle. what ordered pair represent the point at the center of the rectangle?

(what does the 10 mean at the bottom of my screen by the way?)

Answers

Answer:

just need poits sry

Step-by-step explanation:

What does this mean? I don't understand how to make the equation and solve it.

Answers

Answer: 8

Step-by-step explanation:

The formula for the volume of a cone is V=Bh or V=πr2h

Answer:

16.75

Step-by-step explanation:

V=πr2h

3

3.14*2^2 4/3

Three friends each have some ribbon. Carol has 90 inches of ribbon, Tino has 4.5 feet of ribbon, and Baxter has 1.5 yards of ribbon. Express the total length of ribbon the three friends have in inches, feet, and yards.
inches =
feet =
yards =

Answers

Answer:

198 inches

16.5 feet

33 yards

Step-by-step explanation:

Answer: inches = inches = 198 feet = 16.5 yards = 5.5

Step-by-step explanation:

Malik jogs twice every day in a 7-day week with his friend. In the afternoon, they jog 3/5 as far as they do in the morning. At the end of one week they have jogged a total of 20 4/25 miles. How far do Malik and his friend jog in the afternoon?

Answers

Answer:

1.08 miles

Step-by-step explanation:

Given: They jog a total of 20 4/25 miles in a week.

Therefore they jog (20 4/25)/7 = 2.88 miles a day.

If x is how many miles they jog in the morning, they jog 3/5x miles in the afternoon. So 1.6x = 2.88. Divide 1.6 on both sides to get x = 1.8.

1.8 * 3/5 = 1.08 miles

Answer:

1.08 miles id believe

Step-by-step explanation:

Find the arc length of the partial circle. Either enter an exact answer in terms of π or use 3.14 for π and enter your answer as a decimal. r=8

Answers

Answer:

50.24

Step-by-step explanation:

this is a quater circle so we go for the formular 1/4 ×3.14 ×8 ×8 = 50.24

3.3w - 9 greater than - 22.2?

Answers

- 22.2 is greater then 3.3w - 9



Yes -9 is greater than -22.2 due to the fact that it’s closer to 0

PLEASE HELP ASAP!!!

A teacher surveys a sample of students from Lake Middle School. He asks the students where they’d like to go for a field trip. He records these results:

80 choose the aquarium.
60 choose the science center.
30 choose the planetarium.
40 choose the farm.

The teacher wants to figure out the relative frequency of a student choosing the aquarium. He will then estimate how many students out of all 1000 at the school are likely to choose the aquarium. Answer the questions to solve the problem.

2. What is the relative frequency of a student choosing the aquarium? Give your answer as a decimal rounded to the nearest hundredth. Show your work. Write your answer in the space below

3. Suppose the teacher surveys one student at random. Based on the survey results, what is the estimated probability that the student chooses the aquarium? Write your answer in the space below.

Answers

Answer:

2. 0.38

3. 8/21

4. 8:21

Step-by-step explanation:

there all the same questions but in different form hope i helped pls give Brainliest if i am right

7th grade easy math that I can’t do

Answers

Answer: D

Step-by-step explanation: I’ve had this question b4 it’s D. I got it right.

The answer is D if u need an explanation lmk

Decide when to hire another dog walker based on the equation and median time. Equation is x - y (x=89, y= 10). The median time is 30.5 minutes. There are currently 2 dog walkers and each can do 7 hours. Give a reason why to hire another dog walker.

(Median time got by adding 40+50+30+40+15+25+15+20+30+40 = 305 then divding 305 and 10 to equal 30.5) (50 points for the right answer)

Answers

Answer:

40+50+30+40+15+25+20+30+40=305

In a complete sentence, describe the relevant angle relationships in the following diagram. Find the measurement of ∠CQD and ∠EQF

Answers

Answer:

∠CQD =22⁰

∠EQF =33⁰

Step-by-step explanation:

10+2x +103+3x+12=180⁰

5x+125=180⁰

5x=180-125

5x=55

x=11⁰

then

∠CQD = 2x11=22⁰

∠EQF = 3x11=33⁰

I NEED THIS ANSWER RIGHT NOW!
125 , 20 , 35
1)How many triangles? Circle your answer. ONE NONE MORE THAN ONE
2) How do you know? Explain!

Answers

Answer:

1 an triangles is 180 degrese 125+35+20=180

Step-by-step explanation:

math pls help help help help​

Answers

Answer:

Heya!!

Challenge

Dona paints ornaments for a school play. Each ornament is as show n and is made up of two identical cones. She uses one bottle of paint to paint 243 cm². How many bottles of paint does she need in order to paint 60 ornaments? Use 3.14 for π.

9.6 cm x 2.3 cm22.8 cm²

Hi I’m here to the rescue with some simple steps to solve this complex problem!

EASY STEPS:
9.6X2.3
(DON’T USE A-CALCULATOR THIS IS EASY)
ANSWER: 22.8 CM (don’t forget the squared)
Answer:22.8cm^2

Solve for X: 1/2x + 7 - 3/4x = 15

Answers

the answer is x=-32

when you combine 1/2x and -3/4x you get -1/4. Then you’d subtract sever from 15 leaving you with 8. 8 divided by -1/4 is -32

I hate Math…..can anyone help me? Any smart peeps out there?
Give the solution to this system as you describe what it means for members of the gym to consider both plans. Write your answer in complete sentences.

Answers

the solution would be where the two graphs intersect, which would be at month 4 and 100$.

even though the y intercept of the Veteran plan is less than the beginner plan (meaning the initial cost of the veteran plan is less), as the months go on the veteran plan will cost more money.

it would better to select the beginner plan because it would be cheaper.

hope this helps!

Answer:

Here Is my answer for you!

Step-by-step explanation:

The Solution: Where the two graphs intersect, which would be at month 4 and $100. Despite the lower y intercept of the veteran plan compared to the beginner plan (meaning the initial cost of the veteran plan is lower), the veteran plan will increase as time passes. The beginner plan would be more cost-effective. Which means It would more likely to be your answer.

Thanks you!

7th grade math i mark as brainliest

Answers

Answer:

the answer is 53

Step-by-step explanation:

hope thsi helps

Can someone help me, please? I am giving a lot of points!

Answers

[tex]\bold{ANSWER:}[/tex]
16 in^3

[tex]\bold{EXPLANATIONS:}[/tex]
16 in ^3 that’s the answer hope it helps

Give your answer in minutes.

Answers

In an hour there are 60 minutes.

6:38 PM + 22minutes = 7 PM
From 7 PM to 7:23 PM there are 23 minutes

So, (23 + 22) minutes = 45 minutes.
45 minutes is the correct answer

help please and thank you

Answers

Answer:

314

Step-by-step explanation:

20 in diameter means 10 in radius

to find area you do r^2(pi)

10x10x3.14

314 is the area of this

When solving for pie you want the radius to square it
This is the equation to look for;
R^2*pie!
That means 10 is our radius square it and get 100 then multiply it by 3.14 and you get 314!

Hope this helps!!

What is a theme in "Raymond's Run"?
*LANGUAGE ARTS*

Answers

Answer:

the theme in that is identity growth and development

Significance of familial relationship in life

Find the area of the following parallelograms. Show your reasoning.

Answers

Answer:

the area is the amount of blocks/cubes

Step-by-step explanation:

so 26.5

26.5 this is the answer to your problem

Please help! In a complete sentence, describe the relevant angle relationships in the following diagram. Find the measurement of ∠DAE

Answers

Answer:

Angle DAE and EAF are complementary angles, meaning that they add to 90 degrees.

Thus, we have 65+x=90

Solving for x we have 25.

Lin and Andre used different methods to find the area of a regular hexagon with 6-inch sides. Lin decomposed the hexagon into six identical triangles. Andre decomposed the hexagon into a rectangle and two triangles.


Find the area of the hexagon using each person’s method. Show your reasoning.

Answers

Answer:

108inches^2

Step-by-step explanation

.............................................

Divide the hexagon in identical triangles.

Triangle area = length × width / 2

6 × 6 = 36

36/2= 18

The area of a regular hexagon is 85.28 square inches.

Given that, Lin and Andre used different methods to find the area of a regular hexagon with 6-inch sides.

We need to find the area of a hexagon using both methods.

What is the area of a regular hexagon?

The formula for the area of a regular hexagon is (3√3 s²)/2, where 's' is the length of the side of the hexagon. Since we are talking about a regular hexagon, it should be noted that all sides are of equal length. When one side of the regular hexagon is known, the area can be calculated with the formula, Area of the hexagon = (3√3 s²)/2, where 's' is the length of the side of the hexagon.

We know that, the area of an equilateral triangle=√3/2 × a².

So, the area of an equilateral triangle= √3/2 × 6²

=18√3 square inches

Now, the area of a hexagon=6×18√3

=108√3=187.06 square inches

Area of the rectangle = length × width = 10.4 × 6 = 62.4 square inches

Area of a triangle= 1/2 × Base × Height = 1/2 × 10.4 × 2.2 = 11.44 square inches

Now, 11.44 × 2=22.88

Area of a regular hexagon =  62.4+22.88 =85.28 square inches

Therefore, the area of a regular hexagon is 85.28 square inches.

To learn more about the area of a regular hexagon visit:

https://brainly.com/question/28157715.

#SPJ2

Your question is incomplete, probably the complete question/missing part is:

Lin and Andre used different methods to find the area of a regular hexagon with 6-inches sides. Lin decomposed the hexagon into six identical, equilateral triangles. Andre decomposed the hexagon into a rectangle and two triangles. Lin's method Andre's method Find the area of the hexagon using each person's method. Show your reasoning.

Please help with Oregon Trail: Percents.

Answers

From 1846 to 1847 it’s -40% and from 1847 to 1848 it’s 123.3%

C= x2-x1/ x-1
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