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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

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Answer: $S_{12}=399.90$

Step-by-step explanation:

You know that the formula to find the sum of a finite geometric series is:

$S_n=\frac{a_1(1-r^n)}{1-r}$

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Then:

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2. Finally, knowing that:

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3 years ago

Find the focus and directrix of the parabola y = .5(x + 2)2 – 3

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Step-by-step explanation:

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3 years ago

Hello! :)

Vedmedyk [2.9K]

Answer:

C. 350 - acres of pumpkins

Step-by-step explanation:

The Uncle owns 510 acres, and wants 190 more acres of pumpkin than squash totaling at 510.

When looking at the possible answers D is automatically wrong since the Uncle only owns 510 acres. When I added A and C I got 510 as an answer;

160 + 350 = 510

So he wants 190 more pumpkin acres than squash so 160 represents the squash and 350 represents the pumpkin.

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--------------------------------------------------------------------------

Another way to find the answer is by taking 510 and subtracting 190 then dividing by two;

510 - 190 = 320

320 / 2 = 160

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Then 160 would be squash and 350 would be pumpkin.

I hope this helps!

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3 years ago