Mathematics Middle School

Jamie ask 40 random 8th grade students whether or not they had a curfew. Then she asked if they had a set bedtime on school nights. Th results are below. What is the marginal relative frequency of those students who had no bedtime? Total Curfew No curfew Total Bedtime 12 8 No Bedtime 6 14 20 40 18 40 O 6 14 14

Answers

Answer 1

Answer:

6/14

Step-by-step explanation:

The number under ''No Bedtime'' are 6 and 14 which makes the Marginal Relative, 6/14

Hope this helps <3

Related Questions

In order to walk on the moon, all of the tools and equiipment are needed except:

oxygen tank and weighted boots

flashlight and radio

protective suit and radio

oxygen tank and flashlight

Answers

Answer:

flashlight and radio i think

Answer:

Oxygen tank and weighted boots

Step-by-step explanation:

You’ll need a oxygen tank to breathe or you’d most definitely suffocate and die. You’d use the weighted boots to help you walk and stay on the moon. Without them you’d probably fly off into space… and die. Anyhow, they’re ya go hope I helped! :)

Use the angle relationship to find the value of x.

Answers

Answer:

x=11

Step-by-step explanation:

13x-10=133

13x=143

x=143/13=11

13x -10 = 133
X is 11

A carpenter's tool box is made up of nails, screws, washers, and brackets in a ratio of 4:11:9:6. The total number of the pieces in the box is 60. If 5 carpenters have identical tool boxes, how many total washers are in the boxes?
A. 18
B. 48
C. 62
D. 90

Answers

Answer: D 90

Step-by-step explanation:

One way to do this follows: Find the ratio, r, which when multiplied by each of the four numbers in the ratio produces the actual number of parts present:

4r + 11r + 9r + 6r = 60

Summing these up results in 30r = 60, so r is 2.

There are 4(2), or 8, nails,

11(2), or 22, screws,

9(2), or 18, washers, and

6(2), or 12, brackets.

Note that 8 + 22 + 18 + 12 = 60 (total number of parts)

If 5 carpenters have identical boxes, there will be 5(18), or 90, total washers.

Answer:

Step-by-step explanation:

I did it too

Jason and Beth each have a bank account. Jason starts with $1.65 in his account and puts in $0.20 each week. Beth starts with $2.95 in her account and also puts in $0.20 each week. Complete the table to show how much money each has saved after five weeks.

Answers

Week 1
Jason=1.85, Beth=3.15
Week 2
Jason=2.05, Beth=3.35
Week 3
Jason=2.25, Beth=3.55
Week 4
Jason=2.45, Beth=3.75
Week 5
Jason=2.65, Beth=3.95

An octagon has a perimeter of 28 units. What is the perimeter of the image of the octagon after the translation (x,y) → (x-7,y+ 6), a rotation 90 degrees clockwise, and a reflection across the y-axis?
A. 21 units
B. 34 units
C. 28 units
D. 196 units

Answers

Answer:

https://www.caverna.k12.ky.us/userfiles/110/Classes/7142//userfiles/110/my%20files/study%20guide%20answer%20key%20(1).pdf?id=4059

Step-by-step explanation:

copy and past this pdf

The perimeter of the image of the octagon is 28 units

The perimeter of the octagon is given as:

p = 28 units

The transformations are given as:

Translation (x,y) → (x-7,y+ 6)Rotation 90 degrees clockwiseReflection across the y-axis

The above transformations are rigid transformations, and they do not change the side lengths of the octagon.

Hence, the perimeter of the image of the octagon is 28 units

Answers

Answer:

Triangle

Step-by-step explanation:

A square has two sets of parallel sides.

A trapezoid has one set of parallel sides.

A rectangle has two sets of parallel sides.

However, a triangle has no parallel sides.

Hope this helps, good luck! :)

circumference and area, algebra help pls

Answers

Answer:

Circumference is 37.7 ft

area is 113.1 ft

hope this helps

have a good day :)

Step-by-step explanation:

Circumference is 37.7.

Eckert has $200 in his savings account. Eckert withdraws $5 per day. Bjorn has $20 in his savings account. Bjorn deposits $10 per day. How many days will it take before Eckert and Bjorn have the same amount of money in the bank?

Answers

Answer: 12 days

Step-by-step explanation:

Answer: 12 days
Step -by -step

Can someone help me with this question lol, I’ll mark as brainliest if correct!

Answers

Answer:

1. Is Subtraction

2. Is quotient and product

3. Is multiplication, subtraction, and addition

4. Is times and each

Step-by-step explanation:

1. subtraction
2. quotient
3. add, subtract, multiply
4. times

SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!!

Plss show your work and give an explanation

using the DISTANCE FORMULA, determine the distance between the points...

Answers

Answer:

C) 4 to the right

D) 11.7047

Step-by-step explanation:

C) d=√(1−(−3))^2+(4−4)^2

d=√(4)^2+(0)^2

d=√16+0−

d=√1–√6

d=4

D) d=√(−3−8)^2+(−6−(−2))^2

d=√(−11)^2+(−4)^2

d=√121+16

d=√1–√37

d=11.7047

This should be the right way to show the work, hopefully this helps :)

Point Z(-5, -6) was translated to Z'(-8, 4). Describe the direction and distance of the translation. Please hurry!

Answers

I believe it is =9.4z

x=9.4z is the answer your looking for.

A scientist is experimenting with bacteria in his laboratory. He starts out with 3 bacteria. The number of bacteria quadruple every hour. Which equation represents the growth of the bacteria over x hours?

a. f(x) = 4(3^x)
b. f(x) = 3^x + 4
c. f(x) = 4^x + 3
d. f(x) = 3(4^x)

Answers

Answer:

Step-by-step explanation:

It's f(x)=3(4^x)**********

pls help me find the volume of the triangular prism

Answers

Let's find the area of the triangle first:

2 x 5 = 10, 10 divided by 2( x 1/2 ) = 5

5 x 4(width) = 20

Formula of area of a Triangle:

BH x 1/2

(base) x (height) x 1/2(basically just dividing by 2)

PLEASEEEEEEEEEEE ANSWER WILL BE CROWNED BRAINLIEST

Answers

Answer:

RPS =19

Step-by-step explanation:

A right angle is 90 degrees

The two angles add to a right angle or 90 degrees

RPS + QPR = QPS

RPS + 71 = 90

RPS = 90-71

RPS =19

The coach for a basketball team wants to buy new shoes for her 12 players.

Super Sports is offering a 20% discount on each pair of shoes which were originally priced as $72.50. A 6.5% sales tax will be applied to the discount price. How much will one pair cost?

Please explain your answer I will be marking brainliest.

Answers

Answer:

Super Sports is offering a 20% discount on each pair of shoes, which were ... A 9% processing fee will be applied to the cost of the shoes, plus a ... What is the difference in the total costs of the 12 pairs of shoes ... Next, we know that the shoes were originally priced at $72.50 and that a 6.5% sales tax will be ...

1 answer

9 votes:

Answer:$46.77Step-by-step explanation:

Step-by-step explanation:

Need help finding measurements on a rhombus

Answers

All of the measurements are the same because a rhombus is just a tilted square:
All sides are 4cm
Hope it helps ;)

Answer:

5. D 6. B 7. C

Step-by-step explanation:

All side lengths of a rhombus are the same therefore the length of WZ must be 4cm.

The sum of all the angles in a rhombus add up to 360 degrees, since we already have 2 100 degrees( opposite interior angles are the same) then the rest must be 80 degrees angles.

This might be wrong it has been a long time since I did these type of questions, tell me if this helps.

Use the distributive property to write the following in expanded form:

1. 5(7h + 3m) =
2. e(f+g) =

Answers

1 is 35h + 15m

2 is ef + eg

answer 1. is 35h+15m

HEYY:) HELP TY LUVSSS> HAVE A GOOD DAYYY

Answers

Answer:

Calculator is 2, Math book is 3, Ruler is 5, and Pencil is 4

Soultion #1 = 14

Solution #2 = -8

Step-by-step explanation:

2 x 3 = 6

3 + 5 = 8

4 x 5 = 20

2 + 4 = 6

Soultion #1 = 2 + 5 + 4 + 3 = x

7 + 4 + 3 = x

11 + 3 = x

11 + 3 = 14

Solution #2 = 3 - 4 - 2 - 5 = x

-1 - 2 - 5 = x

- 1 + (-2) - 5 = x

-3 - 5 = x

-3 - 5 = -8

I hope you’ve received the help you needed, if not I can re circulate back here

1. Kamar’s bedroom is shaped like a rectangle that is 16 feet long and 12 feet wide. He wants to put carpet on the floor of the entire room. How many square feet of carpeting does he need? *

A. 28 feet
B. 28 square feet
C. 192 feet
D. 192 square feet

Answers

Answer:

The answer is D.192 Square Feet because you would multiply 12*16 and you would get 192

Step-by-step explanation:

What is the length of a diagonal of a cube with a side length of 3 cm?

Answers

Answer:

18 cm

Step-by-step explanation:

Answer:

= 27 cm cube

Step-by-step explanation:

need help with this question.

Answers

Answer:

-4

Step-by-step explanation:

it would be -9+5 which is basically 5-9=-4

so, the answer is -4.

Answer:

-4°C

Key:

( | | ) = these in between numbers is the absolute value. EXAMPLE: |-8| = 8

Step-by-step explanation:

If it was -9°C and it INCREASED by 5°C, you need to ADD.

-9°C + 5°C

*Because -9°C is a NEGATIVE NUMBER and is on the LEFT side of the number line, unlike 5°C, you need to count 5 units to the RIGHT of -9°C (Basically subtract the absolute values of each number (-9 = |9|) (5 = |5|) and make it either positive or negative, depending on which absolute value is the greatest (|9|).*

-9°C + 5°C OR |9| - |5|

|9°C| - |5°C| = |4°C| = -4°C

(because the greatest absolute value, |9|, is negative, the answer is too.)

HOPE THIS HELPS :D

Please help it's important
solve for x
in the picture

Answers

B

Free 5 points !

Which word does not belong?

• descubrir

•resolver

•platicar

•averiguar

ANSWERS

1.) C. platicar

2.) D. cuerpo

3.) C. a murderer

4.) B. closed

5.) B. to kill

The answer is A

5x-57=3x+5 Subtract 3x on both sides
-3x -3x
2x-57= 5 Add 57
+57 +57
2x= 62 Divide both by 2

X= 31

Yun was trying to factor 7x^2-14x. He found that the greatest common factor of these terms was 7x and made an area model. What is the width of Yun's area model?

Answers

Answer:

DO YOU STILL NEED HELP?

Step-by-step explanation:

Answer:

x-2

Step-by-step explanation:

dividing 7x^2-14x by 7x we get x-2

What is the range of possible sizes for side x?

Answer correctly and I will give you brainlist

Answers

0.5 < x < 16.5 given: Two sides of triangle: 8.0 units and 8.5 units
Measure of third side = x
According to the triangle's inequality,
Sum of any two sides > third side. (i)
Difference between the sides < third side. (ii)
If x is the third side, then
x < 8+8.5 [Using (i)]
i.e. x< 16.5
Also, x > 8.5-8 [Using (ii)]
i.e. x> 0.5
Hence, Range of possible sizes for side x would be 0.5 < x < 16.5.

16.5 given hope thus helps

Please answer! Thanks!!

Determine the solution for the system of equations below.
5x - 5y = 20
-2x + 2y = -4

1. no solution
2. (-2,2)
3. (2,-2)
4. Infinitely many solutions

Answers

Answer:

no solution

Step-by-step explanation:

hope this helped have a great day :D

This answer has no solution

PLEASE HELP WILL MARK THE BRAINLIEST

Answers

Answer:

Hank is correct

Step-by-step explanation:

With parallel lines intersected by the same line, all corresponding angles are equal. Also remember that the two angles the are formed on each line need to add to 180 degrees. So we can take the two given angle: 7x+10 and x + 10 and add them. x + 10 + 7x + 10 = 8x + 20 = 180

So Hank has the correct equation.

It’s hank I think but I’m not 100% positive tho

solve for the inequality:
4x - 2 < 6

answers:
a: x<2
b: x<1
c: x>2
d: x>1

Answers

Answer:

Its A

Step-by-step explanation:

Answer:

c: x>2

Step-by-step explanation:

What is the range of possible sizes for side x?

Answer correctly and I will give you brainlist

Answers

Answer:

1.3 < x < 6.7

Step-by-step explanation:

minimum

4.0 - 2.7 = 1.3

maximum

4.0 + 2.7 = 6.7

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

1.3 < x < 6.7

Not sure sorry

Explanation:

What is the area of the rectangle?

0 10 units2
0 20 units2
0 24 units2
0 48 units2

Answers

0 24 units 2 that should be the straight answer by multiplying

24 because if you count all the squares you will get 24.

Angie's walking speed is 5 kilometers per hour, and May's is 4 kilometers per hour. Think about how the distance each girl walks is related to time.
Identify the INDEPENDENT and DEPENDENT variable in this situation. Explain how you know.

Answers

The dependent variable is the hours, and the independent variable is the walking speed. The hours are depended on the walking speed because the time depends on how fast they go, or how quick they go. hope this helped

the dependent variable time (hours) and the independent variable is the distance (kilometers)

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