Mathematics Middle School

A plumber can install the pipes in a bathroom in 4 hours. A different plumber needs 5 hours to do the same job. If both plumbers work together, how many hours will it take to install the pipes?
A. 1
B. 2 2/9
C. 3 1/2
D. 4 1/2

Answers

Answer 1

Answer:

it would be 3 1/2

Step-by-step explanation:

Answer 2

Answer:

D

Step-by-step explanation:

If you add 4+5=9 and then divide 9÷2, ( 2 is the number of digits you used) then the answer would be 4 1/2

Related Questions

Please Help ^^ Thank youuu ( BRAINLIEST)



I hate loosing 2000 for this :(

Answers

Hello! I am crunchbunny123, and I will be helping you today!!

Answer: 35.28 m3

Step-by-step explanation: Picture bellow

Hope this helped! Please mark as brainliest, thank you!!

Answer:

Volume = 0.5 * b * h * length.

b = length of the base of the triangle = 4.2 m

h = height of the triangle = 2.8 m

length = prism length = 6 m

—

Volume = 0.5 * 4.2 * 2.8 * 6 = 35.28 m³

—

Have a nice day!!

PLEASE HELP AS SOON AS POSSIBLE

Answers

Store 1 because there’s a greater variety !!!
Store 1 because there is a even distribution

help pls The circumference of the hub cap of a tire is 80.1 centimeters. Find the area of this hub cap. Use 3.14 for pi. Use pencil and paper. If the circumference of the hub cap were​ smaller, explain how this would change the area of the hub cap.

Answers

Answer: The area is 510.25 cm². If the circumference of the cap were smaller then the area would be smaller as well

Step-by-step explanation:

First, you must find the radius

80.1 ÷ 3.14 = 25.5

25.5 ÷ 2 = 12.75 <---- radius

Then from that, you find the area

A=πr²

12.75² = 162.5

162.5 × 3.24 = 510.25

Hope this was helpful!

Answer:

510.25 cm².

Step-by-step explanation:

First, your gonna need to find the radius before continuing

80.1 ÷ 3.14 = 25.5

25.5 ÷ 2 = 12.75

Find the area

A=πr²

12.75² = 162.5

162.5 × 3.24 = 510.25

A test has 40 questions. The test awards 2 points if the answer is correct and takes away 1 point if the answer is incorrect. A student answered 5 questions incorrectly. And got 35 questions correct. What was his score?

Answers

Answer:

His score is 65

Step-by-step explanation:

All you have to do is 35 x 2 and then subtract it by 5!

His grade was a 65 because 35x2=70(-5) is equal to 65

if anyone could give me the answers to all of these it would rlly help alot♥️♥️♥️

Answers

Answers:
- All Are Rounded to the Tenth (If needed)

1) 5
2) 9
3) 5
4) 10
5) 9.3
6) 8.1
7) 4.7
8) 12

Hope this helps!
5,9,5,10,9.3.,8.1,4.7,12

hurry ill give brainly

Answers

The answer is uniform because the graph is all the same
Uniform throughout all values

Please please help! worth lot of points! Will give brainly if you anser both quetions! need this done ASAP!

1. What is the missing value in the ratio table?
7.2
1.2
10.8
6
2. What is the balance point of the data set?
4
6
9
36

Answers

Answer:

I Only know the first answer and it's 7.2

Step-by-step explanation:

when we look at the ratio table we see that for every 1x our y goes up 1.2

So, 2.4, 3.6, 4.8, 6.0, 7.2

7.2 is your answer.

Answer:

1. What is the missing value in the ratio table?

7.2

1.2

10.8

6

Step-by-step explanation:

Help, this is due in 30 mins!

Brenda bought a new computer for ​$380. She made a payment of ​$140 and got a discount of ​$30. Her mother paid 1/2 of the balance. How much does Brenda have left to​ pay?

Answers

Answer:

She needs to pay $20 more.

Step-by-step explanation:

Mothers payment: $360 divided by 2 = $190 left for Brenda

Brenda + discount payments: $190 - $140 = $50

$50 - $30 discount = $20

The computer cost 380 but she made a payment of 130 and got a discount of 30. Firstly take the whole amount which is 380, and subtract 140 from 380 that gets you 240 now subtract (30 dollars the discount) that gets you 210. The question is asking how much does Brenda have left to pay which is 210

I NEED HELP PLEASEEEEEEEEEEEE I LOVE YOU!!!! Find the mean absolute deviation (MAD) for the set of data { 6, 12, 22, 16}

Answers

Answer:

0

Step-by-step explanation:

6 + 12 + 22+ 16 = 56 ÷ 4 = 14

|6 - 14| + |12 - 14| + |22 - 14| + |16 - 14| = -8 + -2 + 8 + 2 = 0

answer: 0
explanation: add all the numbers together and divide that number by 4 and so on

Fill in the blanks(science)

Answers

Here you go!! these are all the ones i know, sorry but i hope you get a A+

The figure below is a triangular prism.

Answers

b X H Divided by 2

so 14 X18 = 252 so now divied that by 2 which is 126 cubic centamityers

It is b I hope that helps u

Math geometry and measurement

Answers

Answer: You will need 1080 in²

Step-by-step explanation:

The formula for finding the area of a triangle is:

Area = 1/2 x b x h

b = base length
h = height

So the equation would be:

1/2 x 12 x 30 = 180

After finding our answer of 180 we multiply it by the amount of pennants we want to hang in this case that number is 6

180 x 6 = 1080

That's how we arrive at our answer of 1080 in².

What is the value of x when 5x=6.5?

Answers

Answer:

x= 1.3

Step-by-step explanation:

First, separate x, by dividing both sides by 5

[tex]5 \div 5x = 6.5 \div 5[/tex]

which equals

x= 1.3





Answer: 1.3

Step-By-Step explanation:
5x=6.5
5x/5=6.5/5
x=1.3


We have to get X alone but to do that we had to cancel 5 and bring to the other side. So we did the opposite from what it said to do so instead and 5*x we divided. But we cannot just do that on one side so we had to do it on the other which ended us of with x=1.3

any help?? please :))

Answers

Answer:

x = 135°

Step-by-step explanation:

Hello!

The measure of Angle x is simply the sum of the other angles, JGH, and FGJ.

Solve for x:

x = JGH + FGJx = 60° + 75°x = 135°

The value of x is 135°

Theorem Used: Parts Whole Postulate

Parts whole postulate is the adding and subtracting of different lengths to find a specified value.

135 degrees

One hundred thirty five degrees

HURRY PLEASE I WILL MARK BRAINLIEST!!!!!!!!!!!(Bible)
List three ways that man is called to respond to God’s plan in Christ.

a. b. c.

Answers

Answer:

a. be messengers of hope

b. be bothers and sisters in Christ

c. for us to not judge and love thy neighbor

Step-by-step explanation:

bible, yea.

hope this helps:)

ANSWER FASST PLS IT IS IXL 7TH GRADE MATH

pls answer with a good explanation

Answers

Answer: 0 times.

Step-by-step explanation: green does not appear to be on that spinner. (Unless you are colorblind and the screen is tailored to your vision). There are 3 halves of the circle. 2 are blue, one is yellow. So if green is not there unlike yellow and blue, how many times is it possible for it to appear?

Answer: 72 times

As far as I can see there is no green so it’s 72 times

hurry ill give brainly
A case is 11.5 inches long, 8.75 inches wide, and 3.5 inches high.

What is the volume of the box?

Enter your answer, rounded to the nearest whole number, in the box.

in³

Answers

Answer:

352.18

Step-by-step explanation:

You have to mutlipy the lengh width and height just like long wide and high because Volume = LxWxH and you get 352.18

352.18
When u measure the volume…
This is the answer.



ill give brainly and 10 points

Answers

Answer:

[tex]78 \frac{3}{4}[/tex]

Step-by-step explanation:

[tex]V = 5 * 3 \frac{1}{2} * 4 \frac{1}{2} = 78 \frac{3}{4}[/tex]

Answer:

78 3/4

Step-by-step explanation: 4 1/2 x 5 x 3/12 = 78 3/4

Show a Graph of y =x+2???

Answers

Answer:

Here you go :)

Step-by-step explanation:

This is on Desmos

hurry ill give brainly

Answers

Answer:

1. Right

2. Median

3. Range or IQR

- right
- medium
- range or the IQR

ill give brainly but hurry-

Answers

Answer:

I'm answering, give me a sec

Step-by-step explanation:

I will try to do the problem

In a picture, there are 40 monkeys, and 60% of the monkeys are in the trees.
How many monkeys are in the trees? Use a 10-squares model to explain your answer

Answers

24 monkeys because 60%=0.6 and 0.6 times 40 is 24
24 monkeys are in the trees and 16 of them are not

This graph shows how far a hurricane travelled in 4 h. What was the hurricane’s average speed in kilometres per hour?

Answers

Answer:

The hurricane's speed was 200kmph

at average

Step-by-step explanation:

The way how we can find this is simple. If we look at the graph, we see that in 1 hour, the hurricane traveled at a constant rate of 200kmph

Hence, the hurricane's average speed was 200kmph

Deli ham was on sale for $3.29 per pound. Maria's order weighed 1.2 pounds. To the nearest penny, what will Maria’s ham cost?

Please help

Answers

Answer:

365

Step-by-step explanation:

365 I’m pretty sure

please help!! I will give brainliest

The diagonal of square A, marked off by the red stars, is where the concession stand is. A local high school band is performing at the outdoor theater on a summer evening. The band has a school banner that is 40-feet long, and band members would like to hang it across the concession stand to let people know they are performing. Estimate the length of the concession stand to determine if the school banner can fit across the length of the concession stand. Show your work and explain your reasoning.

Answers

Answer:

The school banner can fit across the length of the concession stand

Step-by-step explanation:

The following information is missing:

The length if the sides: c is 50 feet long, b is 40 foot long, and a is 30-foot long.

The distance between the two red stars of the picture makes the hypotenuse of a right triangle, where two sides of length a (30 ft) are the legs. From Pythagorean theorem, diagonal of quare A is:

diagonal² = 30² + 30²

diagonal = √1800  = 42.43 ft

which is longer than the banner.

The school banner can fit across the length of the concession stand is 42.43 ft.

What is Diagonal of Square?

The line stretching from one corner of the square or rectangle to the opposite corner through the center of the figure is known as the diagonal. Any square that has two diagonals are equal in length to each other.

Here, the length of the sides: c is 50 feet long, b is 40 foot long, and a is 30-foot long.

The distance between the two red stars of the picture makes the hypotenuse of a right triangle, where two sides of length a (30 ft) are the legs.

From Pythagorean theorem, diagonal of square A is:

diagonal² = 30² + 30² = 1800

diagonal =  [tex]\sqrt{1800}[/tex]  = 42.43 ft

which is longer than the banner.

Thus, the school banner can fit across the length of the concession stand is 42.43 ft.

Learn more about Diagonal of Square from:

https://brainly.com/question/19227367

#SPJ1

HURRY il give brainly (question 11)

Answers

Answer: (6,2)

Step-by-step explanation:

If you draw this on a graph and want it to be a rectangle with opposite sides of equal length, this is the required coordinate.

6,2the answer ……..your welcome

2 1/3 x 3 equals a whole number. How do you multiply and simplify it?

Answers

Answer: 7

Step-by-step explanation: First convert to a decimal. So 2 and 1/3 is 2.33.

Then multiply 2.33x3

We get 6.99.

Round up to 7 because we initially started with a fraction.

Hope this helped!
First convert the 2 1/3 to a improper fraction. Multiply the whole number by 3 then add the numerator. 2 • 3 = 6. + 1 = 7. Denominator stays the same. 7/3. 7/3 • 3. Since the denominator is 3 and it’s multiplied by 3 they cancel out because that’s the greatest common factor.

Pls help me i dont understand no links also giving brainliest to correct answer

Answers

Answer:

14 units^2

Step-by-step explanation:

1/2 (base x height)

1/2 (4 x 7)

1/2 (28)

14

To find the area of any triangle, the formula below is utilised:

1/2 × base × height
(that’s half times base, times height)

- The “base” refers to the bottom part of the triangle.
- The “height” refers to the tall part of the triangle.
*Note: The diagonal part of the triangle is not used in this formula.


To solve your equation:

1/2 × 7 × 4

=7 × 4 = 28

Therefore,

1/2 of 28 or 28 ÷ 2 = 14

AREA= 14units²

Pls help
How do u find the area of this figure

Answers

To find this, you have to cut the figure into familiar shapes. In this case, you can cut it into two rectangles. When you cut it, there is a missing measurement, which is the length for the small rectangle. To find that, you subtract the other two lengths given, which is 8 and 6, and thats the length for the small rectangle. Then you do l•w for both shapes.

Answer:

The answer is 52 in²

Step-by-step explanation:

You can't find the area of it all at once so you must cut it in have to have two shapes like in the picture above and then name them A and B

Now for the shapes we must use the formula Area= Lentgh times Breath

Shape A: A= L x B

8 x 6 = 48 in²

Shape B : A= L x B

2 x 2= 4 in²

now add 48 plus 4 = 52 in²

Hope this helps!

17. A student has five mathematics books, four history books, and eight fiction books. In how many different ways can they be arranged on a shelf if books in the same category are kept next to one another?

Answers

9 i think because 3 places per book
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