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SVEN [57.7K]
2 years ago
5

Julissa is running a 10-kilometer race at a constant pace. After running for 18 minutes, she completes 2 kilometers. After runni

ng for 54 minutes, she completes 6 kilometers. Her trainer writes an equation letting t, the time in minutes, represent the independent variable and k, the number of kilometers, represent the dependent variable. Which equation can be used to represent k, the number of kilometers Julissa runs in t minutes?
Mathematics
2 answers:
77julia77 [94]2 years ago
7 0

Answer:

K-18 = 9(t-2)

Step-by-step explanation:

Softa [21]2 years ago
3 0

Find how fast she runs 1 km:

18/2 = 9 minutes.

So we know have K = 9t

Subtract 18 from both sides:

K-18 = 9t -18

Rewrite the right side:

K-18 = 9(t-2)

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Answer:

C

Step-by-step explanation:

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4 0
2 years ago
-1(t+8)=-7.1 solve for t
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Answer:

t = -0.9

Step-by-step explanation:

-1(t+8) = -7.1

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7 0
3 years ago
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three roommates Ava, Ben, and Cora went grocery shopping online. Ava spent three times as much Ben and half as much Cora. If tog
Mamont248 [21]

Answer:

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Step-by-step explanation:

Let y be the amount Ben spent

As Ava spent three times Ben will be 3y and half as much Cora(2y)

so the equation becomes

y + 2y + 3y = 50

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Note: if currency is in $

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8 0
3 years ago
What is the m∠N ? Can someone help me :)
Sauron [17]

Answer:

<h2>61°</h2>

Step-by-step explanation:

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We have:

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Substitute:

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6\sin(\angle N)=(18)(0.2924)

6\sin(\angle N)=5.2632          <em>divide both sides by 6</em>

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2 years ago
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Answer:

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Step-by-step explanation:


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