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vova2212 [387]
2 years ago
5

A circular running track is ¼ mile long. Elena runs on this track, completing each lap in 1/16 of an hour. What is Elena’s runni

ng speed? Include the unit of measure?
Mathematics
1 answer:
AVprozaik [17]2 years ago
3 0

Given that,

A circular running track is ¼ mile long.

Elena runs on this track, completing each lap in 1/16 of an hour

To find,

Elena’s running speed.

Solution,

Formula used :

Speed = distance/time

v=\dfrac{\dfrac{1}{4}}{\dfrac{1}{16}}\\\\=\dfrac{1}{4}\times 16\\\\=4\ mph

So, Elena’s running speed is 4 mph.

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statuscvo [17]

Interpreting (1,15) with (4,60), found that (4,60) is 4 times of the coordinate (1,15).

<h3>What are coordinates?</h3>

A pair of numbers that describe the position of a point on a coordinate plane by using the horizontal and vertical distances from the two reference axes.

For interpreting we have to find the relation between (1,15) and (4,60)

We have, (1,15)

For x- coordinate 1, y- coordinate will be 15

Now,

let us take x- coordinate=2 then y- coordinate =30

again, if x-coordinate = 3 then y-coordinate  = 45

lastly, if the x-coordinate =4 then y-coordinate = 60

That means (4,60) is the 4 times of the coordinate (1,15) i.e., the x-coordinate is 4 times as well as the y- coordinate is 4 times.

Learn more about coordinates here:

brainly.com/question/23450276

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4 0
2 years ago
Lines l and m are parallel.<br> Use the diagram to determine the measure of ∠3.
Pavlova-9 [17]

Answer:

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Step-by-step explanation:

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and then you use the equation x+25+2x+50=180 to find x

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5 0
3 years ago
10 points! What is the slope of the given line?
aleksklad [387]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Help plz:)))I’ll mark u Brainliest
rodikova [14]

Answe

Step-by-step explanation:

The interior angles of a triangle add up to 180. We know from the photo that there is a 90° angle and an 18° angle, and 90-18 is 72, so the other interior angle is 72°. The question is asking you to find the value of side x, so you'll need to use sin.

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3 years ago
EXPLAIN A car travelsž mile in
ruslelena [56]

Answer:

Step-by-step explanation:

Your question's not complete.  How far did the car travel?  Call this distance "d."  Then:

d miles     60 min

----------- * ------------ = 12d mph

5 min        1 hour

8 0
3 years ago
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