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Ad libitum [116K]
3 years ago
5

It takes 7 hours for 12 men to paint a room.

Mathematics
2 answers:
finlep [7]3 years ago
8 0

Answer:

28 men will be needed for three hours.

Step-by-step explanation:

7 hours --- 12 men

1 hour --- (12 * 7) 84 hours

3 hours --- (84/3) = 28 hours

Thenks and mark me brainliest :)))

mina [271]3 years ago
4 0

Answer:

28(brainlestplzzzzzzzzzzzzzzz)

Step-by-step explanation:

You might be interested in
What value (s) of x will make x2= 16 true?
Nata [24]

Answer:

There are two solutions to this problem.

x=4

or

x=-4

Step-by-step explanation:

4 0
3 years ago
Please calculate the volume of the triangular prism (MIDDLE SCHOOL MATH)​
k0ka [10]

Answer:

52.374 cm*3

Step-by-step explanation:

the upper triangle is equal to the bottom triangle

Btw fyi the formula of calculating the value of a prism is:

area of the base × height

3 0
3 years ago
Please hurry. it's geometry.
Ainat [17]

That would be option A as the angles  and sides  ( the AS) have already been stated.

7 0
2 years ago
What is the volume of a box that will hold exactly 567of these cubes with 1.3 inch side
Bas_tet [7]

Answer:

21 inch cube

Step-by-step explanation:

(1/3)(1/3)(1/3)=1/27 is the volume of the cube

 the volume of the box : 567*(1/27)=567/27=21

5 0
3 years ago
1. The equation of a circle is x^2 + y^2 + 6x - 4y + 4 = 0. What are the center and the radius of the circle? Show ALLLLLL your
Novosadov [1.4K]

Answer:

(2, -3) and r = 3.

Step-by-step explanation:

you can also plug this equation in desmos but I guess it's good to know how to do it also:

The equation of a circle is (x-h)^2 + (y-k)^2 = r^2

Now in order to make a perfect square on both sides, we need to do this:

First add 9 to both sides:

x^2 + 6x + 9 + y^2 -4y +4 = 9.

I purposely shifted it to show the perfect square created when you add 9 to both sides. Factor:

(x+3)^2 + y^2 - 4y + 4 = 9.

now the second bolded part is allso a perfect square. Factor:

(x+3)^2 + (y-2)^2 = 9

Based on the equation of a circle, the center must be at (2, -3) and the radius is the square root of 9 which is 3.

:)

8 0
2 years ago
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