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2 years ago

The graph shows the number of laps that Jan runs as her coach times her.

Mathematics

2 answers:

Lena [83]2 years ago

6 0

The slope of the line is +2

this means that Jan runs 2 laps every 1 minute

lara31 [8.8K]2 years ago

5 0

Answer:

The slope of the line is 2. It means Jan runs 2 laps every minute.

Step-by-step explanation:

From the given graph it is noticed that the line passing through the points (2,4) and (5,10).

The slope of lines is

$m=\frac{y_2-y_1}{x_2-x_1}$

The slope of given line is

$m=\frac{10-4}{5-2}$

$m=\frac{6}{3}$

$m=2$

The slope of the line is 2.

In the given graph x axis represents the time in min and y-axis represents the laps run. The slope defines the number of laps in each minute.

The slope is 2, it means Jan runs 2 laps every minute.

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Question:

Jordyn, Teri, and Morgan are going to have a kite-flying contest. Jordyn and Teri each have one roll of kite string. They also each have 45 yards of extra string. Morgan has three rolls of kite string plus 10 yards of extra string. All the rolls of string are the same length. The girls want to see who can fly their kite the highest.

Since Jordyn and Teri have fewer rolls of kite string, they decide to tie their string together, so their kite can fly higher. Write at least two expressions to show how much kite string Jordyn and Teri have. Let x represent the number of yards of string on one roll.

Answer:

$y=x +45$

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Step-by-step explanation:

From the complete question, we have:

Jordyn & Teri

$Rolls = 1$

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Morgan

$Rolls = 3$

$Extra= 10\ yd$

Required

Expression for Jordyn and Morgan

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This is calculated as:

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This gives:

$y = 1\ roll + 45yd$

1 roll is represented with x.

So:

$y=1x +45$

$y=x +45$

This can be rewritten as:

$y = 45 + x$

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Please solve these. Will rate you 5 star!

ziro4ka [17]

Answer: Hi!

To find the answer for question 24, we would first find the square root of 20 and 5. The square root of 20 is about 4.47 (I used a calculator for convenience) and the square root of 5 is about 2.24. Now we need to add these:

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Now we divide 30 by this:

30/6.71 = 4.47

Now, we'll evaluate the answer choices.

a) is equal to 1.49

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