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Blababa [14]
3 years ago
6

Rachel and Marc drive to work.

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
6 0

Answer:

Step-by-step explanation:

Rachel

d = 90 miles.

d = 90 * 1.6 km = 144 km

t = 1.25 hours.

Average speed = d/ time

Average speed = 144/ 1.25 = 115.2

Marc

d = 244 km

t = 2hr 30 minutes

30 minutes = 1/2 hour = 0.5 hours

Average speed = 244 km / 2.5 hours

Average speed = 97.6

Difference

Difference = Rachel - Marc

Difference = 115.2 - 97.6

Difference = 17.6

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There were several sunny days this year before my birthday. Since my birthday, there have been 171717 more sunny days. My birthd
Lesechka [4]

Answer:

66 sunny days before birthday

Step-by-step explanation:

Total sunny days after birthday = 17

Total sunny days in year = 83

Birthday was not sunny

Total sunny days before birthday = 83 -17

                                                       = 66 sunny days

Read more on Brainly.in - https://brainly.in/question/6937259#readmore

4 0
3 years ago
In the ellipse shown below, the red line segment is called the?
koban [17]

An ellipse uses major axis  and minor axis.

The major is the larger axis and the minor is the smallest.

Since this ellipse is wider than it is tall the horizontal red line would be the major axis.


The answer is B.

7 0
3 years ago
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What is the measure of mop
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61 degrees, hope this helps!
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3 years ago
Give three ratios equivalent to 9:5
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Answer:

18 : 10

4.5:2.5

27 : 15

Step-by-step explanation:

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6 0
3 years ago
4. The population of Bay Village is 35,000 today. Every year the
frosja888 [35]

Answer:

Linear Model:   y(x)=35,000+750x

Step-by-step explanation:

In principle <em>Linear Models </em>are employed when we want to define a relationship between an independent and a dependent variable. <em>Linear Models</em> are also known as<em> Functions </em>, where one variable is expressed as a function of <em>at least one</em> other variable. The most common example would be a dependent variable y that is directly linked as a response to any changes of an independent variable x. The most common expression of such relationship would be y=ax where a is the relationship factor between y and x and is also known as the <em>slope </em>of the function (representing a rate of change of that function).

In this question we are told that the population of Bay Village today is 35,000. So we know this is our constant variable, lets call it  b.

Next we know that every year the population is increased by 750 people. So we know that our variable and thus our independent variable is every year which we shall call x and our fixed factor is the 750 increment which we will call a.  

From that we can conclude that:

<em>Year 1 Population: 35,000</em>

<em>Year 2 Population: 35,000 + 750 = 35,750</em>

<em>Year 3 Population: 35,750 + 750 = 36,500 </em>

And so on and so forth.<em> </em>

So we want to express the above as a Linear Model of the form:

<em> y = ax + b   </em>Eqn(1).

Thus from Eqn (1) and all information given (i.e. pluging in values) we finally obtain:

y(x)=35,000+750x

Which for every different value of  x (i.e. every year) we can obtain the new and increased population  y(x).

7 0
3 years ago
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