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Gnesinka [82]
4 years ago
13

This year the winner of the New York Marathon ran the 8-kilometer event in 24 minutes. What is the runner’s unit rate?

Mathematics
2 answers:
tatuchka [14]4 years ago
7 0

Answer:

0.33 repeating kilometers per minute. 1km/3min

Keith_Richards [23]4 years ago
4 0

8km - 24 minutes, to find the unit rate (how long it took to run 1km)

We would make a ratio,

8:24

Now just simplify,

8:24

=

1:3

Therefore the unit rate would be 1 kilometer covered for every 3 minutes.

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nydimaria [60]

Answer:

6

Step-by-step explanation:

7 0
3 years ago
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Please help... will be greatful!
Igoryamba

Answer:

5,089.4 cm³

Step-by-step explanation:

Volume of the cylinder = πr²h

Where,

r = 9 cm

h = 20 cm

Volume of cylinder = π×9²×20 = π×81×20

Volume = 5,089.3801 ≈ 5,089.4 cm³ (1 dp)

8 0
3 years ago
Given that f(x) = x2 + x and g(x) = 3x + 1, find the value of g(f(-2)).​
Evgen [1.6K]

Answer:

<h2>7</h2>

Step-by-step explanation:

f(x) = x^2 + x\\g(x) = 3x + 1\\\\g(f(-2)) = ?\\f(-2) =?\\

To find f(-2) , Substitute -2 for x in the given equation ;

f(-2)= (-2)^2 +(-2)\\f(-2) = 4-2\\f(-2) = 2

To find g(f(-2)) ;

g(f(-2))\\f(-2) =2\\\\= g(f(-2)) = g(2)\\

To find g(2) , substitute 2 for x in the given equation

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5 0
3 years ago
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joja [24]
the answer should be 44. you plug in -7 for x.
3 0
3 years ago
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jenyasd209 [6]

Answer:

x=-3

Step-by-step explanation:

4/x=8/(x-3)

We can solve this using cross products

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Subtract 4x from each side

4x-4x-12 = 8x-12-4x

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Divide each side by 4

-12/4 = 4x/4

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4 0
3 years ago
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