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dalvyx [7]
2 years ago
7

A runner competes in a local marathon. He places 34th which is exactly the top 40% of all runners. How many runners competed

Mathematics
1 answer:
laiz [17]2 years ago
6 0

Answer:

85 runners

Step-by-step explanation:

we know that

34th represent 40% of all runners

so

using proportion

Find out the total number of runners

\frac{34}{40\%}=\frac{x}{100\%}\\\\x=34(100)/40\\\\x= 85\ runners

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Answer:

Second option {x | x > 7}

Step-by-step explanation:

We have the function

y = \sqrt{x}

We know that the square root of a negative number has no solution in the real ones. Therefore the domain of this function is x > 0

When applying the transformation:

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f(x) = \sqrt{x-7} + 2

In the same way we must guarantee that (x-7)> 0

Then x > 7.

Therefore the domain of f(x) is {x | x > 7}

7 0
2 years ago
Read 2 more answers
6q + 9 ≤ 9 and 6q + 9 ≥ −9
Ilya [14]
Hello there!

6q + 9 ≤ 9

Start by subtracting 9 from both sides

6q + 9 - 9 ≤ 9 - 9

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Then divide both sides by 6

6q/6 ≤ 0/6

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

The second equation
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Start by subtracting 9 from both sides

6q + 9  - 9 ≥ -9 - 9

6q ≥ -18

Divide both sides by 6

6q/6 ≥ -18/6

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Good luck with your studies!
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2 years ago
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7

Step-by-step explanation:

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2 years ago
The volume of clay used to build a cylindrical pillar with a height of 9 centimeters is 324π cubic centimeters. The area of the
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Area=height times base (for some prisms including cylinders)
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2 years ago
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Marissa is ordering Negative one-sixth, negative one-third, 1.4, 0.2, two-thirds from least to greatest. Here are her steps:
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Step-by-step explanation:

no 2

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