Mathematics Middle School

It takes 4 hours to paint 15 doors at the factory. At this rate how many hours will it take to paint 90 doors?


brainiest to person who explains it

Answers

Answer 1

Answer:

It will take 24 hours to paint 90 doors

Step-by-step explanation:

4 hours per 15 doors

Multiply by 2

8 hours per 30 doors

Using same math

16 hours per 60 doors

24 hours per 90 doors

Answer 2
24 hours
Instead of telling you what I did you can also just add 15 up until you get 90

Related Questions

please help I need it, will give brainliest

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It is 270. Multiply 18 by 12 for the square portion of the shape. Then multiply 18 by 6 for the right triangle. I got 6 by subtracting the bottom line by the top line of the quadrilateral.

answer plz will make brainlest

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Answer

Step-by-step explanation:

all you should do is search up {the equation} and put "simplified" after and results should come up

HEEEEEEEEEELLPPP and I will mark you the brainliest because you're clearly smarter than I am.

Answers

Answer:

Sorry, I am confused; what was the question?

Step-by-step explanation:

:)

-4(x-1)=-3x+13-9-x
PLS SOLVE IT STEP BY STEP

Answers

-4(x-1)=-3x+13-9-x
-4x+4=-3x+4-x
-4x+4=-4x+4
-4x=-4x
0=0

Answer:

x can be any real number.

Step-by-step explanation:

- 4 (x - 1) = - 3x + 13 - 9 - x

The easiest approach to solving this problem is to simplify each side. Start by focusing on the left side, distribute the term outside of the parenthesis, multiply every term inside the parenthsis by the term outside of it,

- 4 ( x - 1 ) = - 3x + 13 - 9 - x

Distribute,

(-4)(x) + (-4)(-1) = - 3x + 13 - 9 - x

Simplify,

-4x + 4 = - 3x + 13 - 9 - x

Simplify the right side of the equation, combine like terms,

-4x + 4 = - 3x + 13 - 9 - x

Rearrage,

-4x + 4 = -3x - x + 13 - 9

Simplify,

-4x + 4 = -4x + 4

At this point, one should use inverse operations to solve the problem, but the given equation is an identity, meaning that any real value can be substituted into the parameter (x), and the equation will yield a true result. Thus, (x) equals all real numbers.

Steve flipped a coin 10 times and recorded his results in this chart

Answers

Heads up: 6
Tails up: 4

Part b.
6/10 of the flips were heads up and 4/10 of the flips were tails up.


Hope it helps : )
6/10 or 60% was heads and 4/10 or 40% was tails

plz help will give brainlest

Answers

Answer:

90

Step-by-step explanation:

15x12=180

180/2=90

Can someone help me out? This is really hard! (brainliest if it's correct!)

Answers

Step-by-step explanation:

Lets convert the time she spend working into a improper fraction.

[tex]4 \frac{1}{2} = \frac{4 \times 2 + 1}{2} \\ = \frac{9}{2} hours[/tex]

Since she spend 2/5 of the above time mowing lawns,

Time Spend mowing lawns =

[tex] \frac{2}{5} \times \frac{9}{2} \\ = \frac{2 \times 9}{5 \times 2} \\ = \frac{18}{10} hours \\ = \frac{18 \div 2}{10 \div 2} \\ = \frac{9}{5} hours \\ = 1 \frac{4}{5} hours \: or \: 1.8 \: hours[/tex]

Answer:

idek

Step-by-step explanation:

is this right

Plz help
Which list shows the numbers in descending order? (Only one correct answer)
A. |-2.5|, -2.25, 2.75
B. -2.25, -2.5, |2.75|
C. -2.5, 2.5, |-2.75|
D. 2.75, |-2.5|, -2.25

Answers

Answer:

B.

Because if it is converted to percentages it would be easier to see.

-225%, -250%, -275%.

HELP QUICK... I NEED THIS FOR MATH

Answers

Answer:

41,500

Step-by-step explanation:

just do subtraction

(113,000 - 71,500)

The answer would be 45,500

does anybody know what type of table this is

Answers

Answer:

I believe that is a graphing table?

Step-by-step explanation:

Answer:  i think its a relative frequency table

Step-by-step explanation:

The question is in the picture below
Don't mind the blue thing it's wrong

Answers

Answer:

The answer is A

Step-by-step explanation:

This is because for every kilogram there are 1000 grams, making A the correct answer.

Answer:i think the answer is A

Step-by-step explanation:

PLEASE HELP ME AND I’ll GIVE BT WITH 20 points <3

Answers

Answer: C=πd

Step-by-step explanation:

What is the measure of ∠KMN?
A. 29 degrees
B. 66 degrees
C. 53 degrees
D. 89 degrees

Answers

Answer:

  ∠KMN = 66°

Step-by-step explanation:

In ΔKMN,

∠MKN + ∠KNM + ∠KMN = 180       {Angle sum property of triangle}

39 + 75 + ∠KMN = 180

       114 + ∠KMN = 180

               ∠KMN = 180 - 114

           ∠KMN = 66°

Answer:

B) 66

Step-by-step explanation:

75+39=114

180-114=66

My cousin needs help with this one to and if you ask why i just dont help her it's cause I dont know this she is to grades higher then me

Answers

Answer:

Step-by-step explanation:

tell her that she needs to put the triangle in quadrant 1

so you want to rotate it clockwise 180 and to do that you need

here is the answer

( 0,1 ) ( 5,2 ) ( 3,4 )

Put triangle in first quadrant. Rotate clockwise 180 degrees

i need help me need to match i am getting confuse.

Answers

Answer:

1 A= pi 21^2

2 C=pi 21

3 A= pi 10.5^2

4 C= 2pi 10.5

Step-by-step explanation:

The legs of a right triangle are 6 and the square root of 13. Calculate the hypotenuse.

Answers

Answer:

Pythagoras Theorem

Step-by-step explanation:

[tex]a^{2} +b^{2}=c^{2}[/tex]

[tex]6^{2}+ 13^{2}= c^{2}[/tex]

[tex]205=c^{2}[/tex]

[tex]\sqrt{205} = c[/tex]

[tex]14.32 = c[/tex]

Jill had saved money to spend at Target. She spent $33.75 on a pair of shoes, which is 27% of her saved money. How much money did she start with?

Answers

Answer:

hope this helps

Step-by-step explanation:

$42.86

$42.86 is the answer

(16x3x29)-17= Is this how you write a numerical expression

Answers

Answer:yes i believe so

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

A numerical expression consists of an equals sign and more than one operation sign.

Fine the missing angles for 1,2,3,4

Answers

Answer:

4=65(180-65-55=65)

3=60(180-55-65=60)

2=65

1=55

Step-by-step explanation:

Straight line is 180 degrees

1. 55
2. 65
3. 50
4. 65

In which container is the probability of randomly selecting a green ball on one draw 4/7?

Answers

Answer:

B

Step-by-step explanation:

B

Answer:

B because 4 green balls in it out of a total of 7 balls

Step-by-step explanation:

7th-grade math work please answer the ones you know the answer to the person who answers more than 2 gets brainliest

Answers

Answer:

the one with the diameter of 64 is f

Step-by-step explanation:

The answer to the ice cream one is 8

Caden has 35 buttons. Todd has b more buttons than Caden. Write an expression that shows how many buttons Todd has.

Answers

The expression is 35+b

NEED THIS ASAPPPPPP The circumference of a circular field is 175.84 yards. What is the radius of the field? Use 3.14 for pie and do not round your answer.

Answers

Answer:

Circumfrerence =pi d

So d=175.84/3.14

Step-by-step explanation:

Yes the correct answer is d


Select the correct answer from the drop-down menu.

It takes 8 blocks with side lengths of meter to fill a rectangular prism.
The rectangular prism has a volume of __ cubic meter.

1/8
1/4
1/2
1

Answers

The rectangular prism has a volume of, 1/4 cubic meter.
Answer: The rectangular prism has a volume of 1/4 meter

please help me out! this is urgent please do it correctly heres 10 points and a brainleist if you answer it right

Answers

Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable.
An independent variable is a variable that is alone, without anything

I need help with this question no addling links or doing it just for points i really don't want that stuff if i see it i will report it

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Angle t = 141 degrees

please help me with this question asap

Answers

Answer:

12

Step-by-step explanation:

The answer to your question is 12

Pls help need help ASAP 50 points you will be reported if the answer is wrong

Answers

Answer:its the second answer

Step-by-step explanation:m +25 is the total money spent and -1/2 is the money she didnt have to pay

Answer:

Option 2nd

Step-by-step explanation:

m+ 25-1/2

I hope it helps

Find the third angle of a right triangle if one of the angles measures 38^{\circ}38
∘
.

Answers

Answer: 52

Step-by-step explanation:

add 90 and 38 then subtract from 180

I am pretty sore the answer is 52

can someone please help with this problem?

Answers

Can’t see it the answer
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