All categories

3 years ago

It’s takes 53 minutes for 6 people to paint 6 walls. How many minutes does it take 20 people to paint 20 walls ?

Mathematics

2 answers:

kramer3 years ago

7 0

Answer:

Step-by-step explanation:

It is a trick question. 6 people to paint 6 walls will take 53. 20 people to paint 20 walls will take 53 minutes.

Sholpan [36]3 years ago

7 0

Answer:

Time taken for 20 peoples to paint 20 walls = 53 minutes

Step-by-step explanation:

It’s takes 53 minutes for 6 people to paint 6 walls.

$\texttt{Time taken for a guy to paint 6 walls =}53\times 6=318minutes\\\\\texttt{Time taken for a guy to paint 1 wall =}\frac{318}{6}=53minutes$

Now we need to find how many minutes does it take 20 people to paint 20 walls.

$\texttt{Time taken for a guy to paint 20 walls =}53\times 20=1060minutes\\\\\texttt{Time taken for 20 peoples to paint 20 walls =}\frac{1060}{20}=53minutes$

Time taken for 20 peoples to paint 20 walls = 53 minutes

You might be interested in

Solve the math problem

Kamila [148]

The answer is -34 k^8 z^12.

6 0

2 years ago

Please help!!!

Nonamiya [84]

Answer:

c. $2a^3x^4-3a^3x^3+a^4x^2$

d. $63x^5y^3-30x^2y^4-7x^3y^2$

Step-by-step explanation:

For this exercise you need to remember the following:

1. The multiplication of signs:

$(+)(+)=+\\(-)(-)=+\\(-)(+)=-$

2. The Product of powers property, which states that:

$(a^m)(a^n)=a^{(m+n)}$

3. The Distributive property:

$a(b\±c)=ab\±ac$

Knowing that, you can solve the multiplication of the polynomials:

c. $(-2ax^2+3ax-a^2)(-a^2x^2)=\\\\=(-2ax^2)(-a^2x^2)+(3ax)(-a^2x^2)+(-a^2)(-a^2x^2)=2a^3x^4-3a^3x^3+a^4x^2$

d. $(6.3x^3y-3y^2-0.7x)(10x^2y^2)=\\\\=(6.3x^3y)(10x^2y^2)+(-3y^2)(10x^2y^2)+(-0.7x)(10x^2y^2)=63x^5y^3-30x^2y^4-7x^3y^2$

8 0

3 years ago

A bag contains 3 red marbles, 7 blue marbles and 8 green marbles. If three marbles

ohaa [14]

Answer:

8/18

Step-by-step explanation:

You have 3 red, 7 blue, and 8 green marbles. Add all of them together and you have 18. The probability of you pulling out 3 green marbles is 8 out of 18.

8 0

3 years ago

Riley is 3 years older than his sister Which of the following represents the sum of their age? A-3s B-s+3 C-2(s+3) D-2s+3

Rainbow [258]

It's D-2s+3 have a nice day

4 0

4 years ago

Graph the equation.<br> y=-3x - 4

musickatia [10]

Step-by-step explanation:

Goes down 4 since it's a negative

5 0

3 years ago