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vagabundo [1.1K]
3 years ago
13

Khaled is preparing to paint his room. If it would take three workers 8 hours to apply two coats of

Mathematics
2 answers:
Tresset [83]3 years ago
8 0

Answer:

20 minutes

Step-by-step explanation:

hope it helps u

plzz plzz plzz mark as brainliest

adoni [48]3 years ago
6 0

Answer: 3 hours

Step-by-step explanation:

To solve this problem, utilize something called the unit rate.

Because it takes three workers(x) 8 hours to apply two coats of paint, simply write: <u>x/3 = 8 ÷ 2</u>.

x/3 = 4

x = 4 * 3

x = 12

Thus, it takes one worker 12 hours, or 720 minutes to apply one coat of paint.  Thus, because the number of workers is multiplied by 4, divide the time spent by 4, to get 3 hours, or 180 minutes.

Hope it helps :) and let me know if you want me to elaborate.

N.B. This is an inverse relationship, as when the number of workers increases, the amount of time decreases.

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W+8= -3<br> Solve for w I need help
tresset_1 [31]

Answer:

w=-11

Step-by-step explanation:

w+8=-3\\\\w+8-8=-3-8\\\\\boxed{w=-11}

Hope this helps.

5 0
3 years ago
Find the perimeter of the stage shaped like a semi-circle (shown below), rounded to the nearest tenth of a foot.
SVEN [57.7K]

Step-by-step explanation:

Hello there, because you did not attached the photo or the information of the diameter of the circle, so I will solve this type of question under a general form

Let's assume d is the diameter of the circle

=> the perimeter of the circle is: dπ

=> the perimeter of the half arc of a circle

= 1/2 perimeter of the circle

= 1/2dπ

Hence, the perimeter of the stage shaped like a semi-circle:

=  the perimeter of the half arc of a circle + the diameter

=  1/2dπ + d

= 3/2dπ

Just substitute d into the above expression, you will find out the answer.

Hope it will find you well.

5 0
3 years ago
Melissa needs 3.87 feet of string to use as a border for her poster. Melissa finds a piece of string that is 4.25 feet long. How
Tasya [4]
[tex] 4.25 - 3.87 = .38ft [tex]
7 0
4 years ago
WILL GIVE 100 POINTS AND MAYBE BRAINLIEST
Anon25 [30]

Answer:

y=\cfrac{1}{2}\;x-4

x   |  y

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-2    -5  = 1/2(-2)-4=-1-4= -5

4     -2   = 1/2(4)-4=2-4= -2

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4 0
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Help with this quistion
ankoles [38]

Answer:

i am pretty sure the answer is a. a vertical shift down 8 units.

Step-by-step explanation:

let me know if this is wrong

7 0
3 years ago
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