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Xelga [282]
3 years ago
9

It takes 54 minutes for 4 people to paint 6 walls. How many minutes does it take 6 people to paint 7 walls?

Mathematics
2 answers:
Simora [160]3 years ago
8 0

Answer:

It will take 42 minutes.

Step-by-step explanation:

In order to solve this we first have to calulate how long will it take one person to paint one wall:

54/6=9minutes

That is between 4 people it will take 9 minutes to paint a wall, one person alone supposing they all work at the same rate will take 36 minutes.

Now we just multiply that by the number of walls to be painted:

36*7=252

And we divide that by the number of people painting:

252/6=42

So it will take 42 minutes to paint 7 walls with 6 people painting.

Nady [450]3 years ago
6 0
It takes 35 mins for 6 people to paint 7 walls if you would like this answer described to you let me know please 
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Fatima took 546 US dollars to the bank to exchange for Canadian dollars. If the exchange rate on that day was 1.6 Canadian dolla
olchik [2.2K]

Answer:

$873.60 Canadian dollars

Step-by-step explanation:

All you have to do here is multiply the rate, so 1.6, by the total amount, so 546.

546 x 1.6=873.6

6 0
3 years ago
What is the remainder when f(x) = x^2 + 14x − 8 is divided by (x − 5)? 103 88 87 72
il63 [147K]

Answer:

<h2>The answer is 87</h2>

Step-by-step explanation:

f(x) = x² + 14x - 5

To find the reminder when f(x) is divided by x - 5 , substitute the value of x into the above formula

That's

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x = 5

So we have

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f(5) = 25 + 70 - 8

f(5) = 95 - 8

We have the final answer as

<h3>87</h3>

Hope this helps you

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3 years ago
1. What types of numbers make up the set of rational numbers?
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Answer:

Natural Numbers, Whole Numbers, and Integers are rational numbers.

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Numbers with repeating decimals and terminating decimals are also rational.

Example: {2.34343434..., 3.45}

If a square root makes a perfect square, then it is rational.

Example: {√16, √100}

Hope this helps.

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Step-by-step explanation:

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4 0
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Read 2 more answers
Use trigonometric substitution to verify that
photoshop1234 [79]
T = 0
=> Q = 0
 t = x
=> Q = arcsin(x/a)
 rest it just simple integration of trigonometric function
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